Didactically well, target level unclear price high

I welcome the following:
+ Good educational structure of the content and the varied repetitions
+ Method of involvement in talks good
+ Professional speakers, good sound
+ Class for learning while driving - when traveling alone ;-)
+ Fits language level A2 to B1, eg "returners"

To devaluation leads me unfortunately:
- Language level is not clearly stated
- Not limited topics
- Unsuitable for a 'start to the new language "
- No booklet, optional accompanying material is only available in Internet
- Price for a purely acoustic course high

Conclusion:
Granted, I rate it with only three stars, the series hard. In it is reflected for me weak price-performance ratio. Sets Target language level and subject area is not narrowed by the producer.
For people with basic knowledge, without a computer or while driving only acoustically, the course is well suited!