I owned one for about a week. The OS is not finished. Some of the functions are not even implemented yet. I didnt intend to spend that much hard earned money on an incomplete product, so I returned it.
That being said, the drums on it are awesome. The synth engine is monophonic, and FAT. This is due to the 24db VCA. I mean basses and leads sound really good. Only bad thing is that there were 26 pages (4 parameters each page) to scroll through when designing sounds. ANd that was just for the OSC's. All the parameters when in numbers including the waveforms. That sucked! Customer support was great. I had emails answered usually within the same day. It is up to you though. It iwll eventually be finished.
