With the latest firmware they fixed my only qualm with the synthesizer: the envelopes. Before they were too fast even on the slowest setting, and this is a synthesizer that really does pads very well, so it was a shame - alas, no more, the latest firmware made it possible to change the speed of the envelopes to much slower and more.
The knobs feels a bit too light, but that is preference. I'd like more resistance, like on my Novation Peak. The synth is built really well and the keys are fantastic - so is the sound.