I like Pimsleur. It is good for pronunciation, the SRS is pretty good and the way it asks you how to say things is great to make you think in Japanese. I use it often in the car. I was using Japanesepod101 for awhile but I find with Pimsleur I’m much more active in speaking out loud and thinking in Japanese.
However, it’s awful for grammar. It introduces tons of constructions without breaking them down into their individual parts. For example, for a lot of verbs it just gives you the Te form and I don’t think it is best to learn things like tabenakerebanaranai as a stock phrase!
It annoys me when I hear the voice say “…” also means… It doesn’t!!! It means the same thing every time! It does this a lot for the particles like ni, de etc which - apart from a few like ga which are actually different particles - they never change their function!
I started it from day one and it confused the hell out of me. Now that I am a bit more experienced I can get more from its strengths without being confused by it’s weaknesses.
To be fair, I don’t know what any of the accompanying material is like and it might break down some of the grammar better, but hearing about the ‘multitude’ of meanings for things like ni is just confusing!.