JapanesePod101 is fun but it’s very inefficient - so it’s more like “edu-tainment”. There’s only like 5 minutes of real Japanese content in each 20 minute episode and the other 15 is them just chatting in English. Not great if you’re low on time.
Each Pimsleur lesson on the other hand is 100% content - 30min episode means 30min of practice. Pimsleur only has 5 levels though and their “advanced” level is lower intermediate at best. But agreed with the other folks that it helps you build confidence and speed. They also do a subscription service now that’s like $20/mo, which is reasonable. They have around 30 lessons for each of the 5 levels and pacing is good at one per day, so you’re looking at $100/total to go through the full course.