This is my first MIDI keyboard. Looks really good. It's the better than most i've tried in stores. There are intuitive to operate, for me it wasn't difficult even without instructions.
By the way, Arturia's support works 24/7, as it turned out, and this is insanely pleasing. Maybe someone needs this information.
I give 4 for the quality - this is due to the noise keybed, it seems that at night i'll disturb everyone in the house. Not critical, but still. The keys themselves are semi-weighted and pleasant to press.
And i would also like some kind of resistance of rotary encoders, they turn too easy.
But in general, for this price it's great.