Wow, it's been a little while since I've popped onto this forum-- mainly because French is on the back burner as compared with Japanese and Mandarin. Still, albeit low, the fire is definitely still burning.
At any rate, from my understanding Michel Thomas was a native speaker of German. Although he brought his proficiency level in his other languages to a very high level, I've still heard people complain about his accent. Whether or not it is true I suppose is best left to native speakers. Regardless he is an
excellent teacher.
I completed the 8-disc beginner set a few months ago, and have since been working my way through the "builder" set as time permits. Due to the lack of dialogue with the students, the course has become a relentless barrage of sentences and grammar. While still very useful, with such density the material (despite its modest length of 2 hours) takes a long time to absorb.
For anyone interested in seeing a written transcription of the dialogues, you can find some nice ones here:
http://www.geocities.com/joekane765/
I have noticed a handful of mistakes here and there, but the amount of time this guy must have invested in writing these is worthy of praise.