It's pretty poor...
1) Flimsy, inaccurate analogue sticks with slippy tops. (and they're in the wrong place).
2) Horrendously bad L2 / R2 "triggers".
3) Too small for Western hands.
4) Flimsy build quality (try twisting the controller and it'll creak like a barn door, then try it on a 360 pad!)
5) Pointless motion control that was never actually used for anything useful.
6) Those silly, rubbery "start" and "select" buttons!
The DS4 does look a lot better, but it's still not as good as the Xbox controller. And that's a fact, not a "fanboy" comment, as i'm in the majority who hold that opinion, thanks.