This is a very well built unit. It feels super sturdy. The interface is very clear and convenient to use. There's no learning curve if you already know MIDI.
I'm a bit frustrated feature-wise. I won't go into details, because it would feel like a rant, and also, there are frequent firmware updates, hopefully rendering my points moot in the future. Just check out the latest manual before buying, to make sure it does everything you need it for. I probably should have.
At least there's a feature request thread on the brand's forum. So, they apparently listen to our feedback.