It's a very nice little keyboard. Hardware end is very good, it feels well made and the velocity sensitive keys work surprisingly good. Software end is not so great. Everything works but for some reason I cannot get the arpeggiator to work with either Reason 5 or Ableton Live 8. I tried upgrading drivers and all that and still nothing. I contacted Akai's support team and after 2 weeks of waiting they finally responded that the problem hasn't been resolved yet. I gave up and started using VST arpeggiators.