Reply to Whats it like to use a Xone 4D with Traktor Pro 2 ?

Was looking up the Xone 4D used as a midi controller.

What makes it better than lets say a S4 or VCI 400 in the instances as follows ?

Would it have better sound as in EQ and general quality.

FX control and feel?

Looping?

4 Deck Control?

Whats the Xone 4Ds competition like and who ? Pioneer, Numark, Denon etc.

My style of mixing, looping with EQs, hot cueing and a bit of FX thrown on top not so much to destroy the music being played.