Bunpro is good at what it is. It’ll help with memorizing Japanese grammar and vocabulary, and has great explanations on the topics it covers.
It won’t make you N- anything. It won’t teach you kanji. It will barely help you with listening, and it’ll do nothing to help you actually speak in Japanese.
To learn any of those useful skills, you need to read, write, listen to, and interact in Japanese.
I’ve been using Bunpro consistently for the past 4-5 months. I studied Japanese about 10 years ago but stopped because of life situation. Had to leave Tokyo and never had a chance to continue using it. But now looking to go back but felt my Japanese language capability really atrophied. So I started reviewing the JLPT content and currently in N3 with both vocab and grammar. It has helped me out a ton and I feel way more confident in my ability to read Japanese. The only other source of study I do is Anki for RTK kanji, but that’s about it.
I plan on use Bunpro all the way to N1, hopefully completing all the study materials by October, unless I get burnt out. But I know I’m going to need to pick up other resources to study from though, but that’s normal. Using only one source to study from is highly irregular for people who are actually successful at the language.
Btw, if anyone can recommend me some good reading material for N3 level that I can actually just read and enjoy without stopping every 2 or 3 sentences, I’d be grateful.
I passed N2 and the only resource I’ve used for grammar is Bunpro, if that’s what you mean?
Obviously I’ve listened to heaps of podcasts, done my own reading and immersion, as well as watching youtube vids on certain points and and speaking about them, but if we’re talking about formal ‘study’ - I’ve never used textbooks, only ever this site
For me, I use it to solidify the stuff I’ve seen in immersion (and on other resources like WaniKani) but thats because my brain just needs the same thing explained 10,000 different ways before it sticks 
All I know- if I haven’t come across a word on Bunpro, I usually can’t bring it to my brain. Even if I can easily recognise it just won’t pop up in the ole noggin when I want to use it… but, on the other hand, since I only do the English-Japanese fill in the blanks, I find the vocab doesn’t stick very well at first if I haven’t come across it in another context before. Doesn’t mean I don’t push though, I eventually do get them lol!
Have you tried Tadoku for graded readers?
Having studied on and off for the last 20 years with textbooks, old school apps and CDs like Rosetta and Pimsleur, 2 years of university Japanese, iTalki, hellotalk, etc; the combo of bunpro and wanikani has worked the best for me. If I could only pick one, I would pick bunpro.
Like others said, you will need a holistic learning routine in conjunction with speaking practice (meetups, hellotalk, italki, etc), reading practice (yahoo blogs, ameba blogs, twitter, tadoku, etc) and passive learning like native language YouTube and Netflix.
Best of luck on your learning journey.
I passed N5 without spending a penny. I used duolingo, the free Bunpro trial, free wanikani, free KanjiStudy, anki decks, tokini Andy and real Mochi sensei on youtube.
They were all very helpful, and all contributed to my learning. Why should I pay when there are so many great free resources?
I thought I’d do the same again for N4, but realised all the freebies only really covered me for N5. Learning kanji, grammar, vocabulary, reading and listening was going to require a lot of extra legwork.
I could do it without spending anything, but it would be a headache and I would have to put in hours curating my own content and making sure I’d covered everything.
Or I could take out a couple of lifetime subscriptions and save myself the hassle and headaches, because people smarter and more experienced than me have already put in the legwork to curate the material.
My goal is to learn Japanese.
What really swung it for me was knowing that I would learn more, and learn quicker, if I had a Bunpro sub.
I decided on KanjiStudy for kanji and cross-referncing vocab (it’s very useful as a dictionary), and Bunpro for grammar and vocab.
The cost is pretty low for what I’m going to get out of it.
Bunpro isn’t the only thing I use, but it’s an effective component of my learning.
Bunpro made me N2 proficient and really helped me with the grammar and reading since. I failed the N2 4 times before I started using Bunpro for N2 grammar, subsequently I passed the N2. I also did some more rigourous vocab studies in parallel too, but Bunpro absolutely was part of that equation for me.
Since passing the N2 I’ve been working through the vocab list on Bunpro for N1. It’s massively helped with my reading confidence.
Bunpro has 8 example sentences for each vocab / grammar point. This is extremely valuable for learning vocab in context. Even if you like sentence-mining (which I highly recommend to do) Bunpro saves the hassle of copying and pasting a sentence and it’s meaning into Anki.
In my 8 years studying Bunpro is the best app I’ve used for studying. It’s far from perfect, but above all the example sentences for vocab/grammar make it really worth the $5/mo subscription. I’ve seen apps with worse value offerings.
In this post (What Japanese learning advice would you give to your past self? - #22 by Hairymini) I laid out what I wish I did when I started learning Japanese. Amongst them are two things which are crucial:
The main issue with Bunpro is a lot of example sentences use vocab/kanji outside the level you are studying at. e.g. an N5 sentence may have N2 vocab. This problem is more pronounced at earlier levels since you won’t have the proficiency to fill in contextual clues.
This is getting better with a widget to help see what the vocab list for a grammar point is, but still not ideal since the vocab example sentences will use high level vocab. If you can take this point of frustration by the horns and become comfortable with vocab/kanji you don’t understand, Bunpro is excellent.
I haven’t seen this before, I’ll check it out. Thank you.
Also the grammar resource is free to view/use. The paid component only covers the SRS elements of the app. So it’s entirely plausible to work through it like a textbook.
Agreeing with the rest. For vocabulary building and even basic grammar practice, this is very useful and is more efficient than any other method I’ve tried in the past 20 years. Vocabulary has always been my weakest point, so being able to study it in the manner it is here is highly effective for me and has really helped.
That said, it shouldn’t be the only learning method. It’s really great for what it does, but being able to put info together into a comprehensive whole requires more than just Bunpro. So worth it? Yeah. But don’t expect it to be magic.
I have also noticed my vocabulary knowledge improve by leaps and bounds since I started using Bunpro! I was just using WK before and I realised it’s really not sufficient for vocabulary. In the past, I also used Anki decks, but I found I forgot what I learned as soon as I learned it. Somehow, Bunpro has been the one to really stick. I think its the main reason I can even think about trying for N1 this year, but as others have said, I don’t use it in isolation. There’s no single resource that can get you to Japanese proficiency (and imo, there shouldn’t be), because language learning has many facets.
Bunpro + Wanikani carried me through N1.
Turns out when you do hundreds of WK and BP reviews every day, you end up being able to read pretty fast
I’m sure it can be the only learning method you use, and be efficient, as long as you can concentrate aka having fun.
another vouch for the wanikani+bunpro combo! i have yet to take JLPT (planning on taking N3 in december) but i live in japan and ive made noticeable improvements in being able to understand whats going on around me
I’ll clarify so that I don’t seem to biased 
I also give big props to Tae Kim’s Guide to Grammar, as well as the 新完全マスター books!
I used to make my own decks based on words I didn’t know when I was reading, but it was difficult because I ended up with so many, and I’d have to keep practicing things I knew. The intervals here helps me with retention SO MUCH more and it means the ones I don’t remember I get extra practice with, and the ones I basically remember after the first day I don’t have to do as often.
I don’t know that there’s a single platform that’s going to get you to fluency or N1 or even to proficiency by itself. But BunPro’s probably one of the best, most well-rounded standalone resources out there and is under active development, so it’s always improving.
I think it does over-saturate you on certain things…like, I don’t know that I need to know every nuance of every vocab word. I also meet with a tutor where we review stuff from BunPro, and she regularly says, “Nobody uses this.”
You’re not really asking for a review, though. I guess I’d say that learning a language isn’t easy, especially Japanese. BunPro’s an excellent resource, but it shouldn’t be your only one.