I've used Pimsleur at length in the past and found it the most suitable way for me to study language. The drawbacks are the limited programs, they develop at a

I've used Pimsleur at length in the past and found it the most suitable way for me to study language. The drawbacks are the limited programs, they develop at a glacial pace, if at all anymore, and each level is very expensive. But the method is wonderful. I had friends offering to help them develop their particular language into a full course 20 years ago and they said "thanks but no thanks" and there is still nothing but a 10 lesson intro program in that language...and those intro courses are a useless waste of money except to learn how to say "I speak a little <language here>" with perfect intonation. For a long time I wished someone would unseat them but it never happened. Even related theory based sites which complimented Pimsleur like Duolingo and Memrise just got worse and worse with time.