I think this is excellent music for having on as background, but I believe it also has other merits. If you don't like repetitive or trance-inducing music, this may not be your cup of tea... but if you like rhythms and patterns, you can immerse yourself in this CD. Certain aspects of the instrumentation mutate/change througout each cut, and the changes are subtle enough that they may not noticed without careful listening. In some of the cuts, a drumbeat will change slightly over a keyboard pattern that doesn't change, then one keyboard motif will gradually fade as another takes over. The music creeps gradually, but it's also stuff to which you can tap your toe.
This might be dangerous music for some people to listen to while driving because if you get involved with it you might forget what you're doing. For me, it makes great soundtrack music for night driving in the city, as well as driving across vast, open spaces such as the desert.