I picked one up yesterday and I loved the look of the pad, but I just wasn't feeling it. The micro-switches were good, but with the buttons being almost flush with the body made them feel mushy. The D-Pad was solid, but it was still the "Xbox" style D-Pad where its all one piece. Might just be personal preference but I feel the PS/Sony style D-Pad is way better where each direction is a separate button.
The shoulder buttons were probably my biggest gripe to be honest. They're hollow feeling and have a reallllly audible click when pressed, which to me made them feel really cheap. Also, the weight of the controller was a problem for me, but that is a personal preference type of thing. In my opinion, I think some people will like it, but others will hate it. It's an awesome design aesthetically, but for me it felt like a third-party controller that has that "Gamestop" branding (you know, the ones that actually say Gamestop on the controller itself).
I was really excited for the controller because I thought it was what I wanted, but left wanting more for $50. Swapped it for a DualShock 4 controller.