This device delivers an impressive sound. Really!
From all the PO's from Teenage Engineering+Cheap Monday it's the one that covers more ground (rhythmm, bass, melody, filters).
You can vary the pitch of every sound in the soundbank, very customizable, syncable, and the filters are one of the best things, way above it's price range!
Although one must deal with it with great patience in the beginning (this has a tricky and steep learning curve) it's definetly usable for laying down ideas for rhythm and bass on the fly or while commuting. The controls aren't really intuitive, but once you get the hang of it and do it methodically, it's very fast and fun to use.
Especially for the price, i really like it! I had one that broke down, I returned it, but Thomann (and Teenage Engineering) were great and sent me a new one :)