Maybe one of the most "bang for the buck" piece I ever bought. Quite easy to learn with good interaction design. Sound wise a bit grainy because of the lower bitrate, but that is exactly how I want it. The software sucks though (mac) with a lot of bugs. It does the job but crashes a lot. On the iPhone it is ok. Fun to record and just transmit via cable.
Works well with other Volcas as well. Chain mode is less usable than the Volca 1 Song mode unfortunately. It would be more logical to include both. Anyway, I love it and use it a lot.