Yeahhhhhhhhhhhhhhhh
It's very good, if you use it right
http://languagegeek.net/2010/05/12/how-to-use-an-assimil-course/
Start with that and modify as you need, it's what I did
Look up "shadowing" also2
Assimil is the best as far as I'm concerned, but you should use other programs with it
I like putting the sentences into Anki
Sorry I didn't get to this sooner, I didn't see it :\