- How long have you use it?
10 days along with Traktor 3.4 and Traktor Pro

- What you like best:
3 tracks "volume" and number of buttons and controls assignable
Nice touch faders and pots. The set off a real feeling of solidity.

- The least?
No external power supply that can pump a bit on some USB ports
"Shift" limited to certain buttons.
MIDI implementation poorly described. Sending a message on the control switches shown in another.

- Have you tried many other models before buying it?
Yes: Vestax VCI 100, M-Audio X Session, Faderfox DJ Kontrol DJ. I put the same level as the level vestax grip, though a bit more cumbersome, it allows to have controls enough apart to avoid them tangling fingers.

- How would you rate the quality / price?
Very good

- With experience, you do again this choice?
Yes. My choice was motivated by my lack of need for a controller with integrated audio interface.