I've personally only used it to play Elite Dangerous. There were a ton of helpful profiles that made ship maneuverability much easier to manageI got mine a couple days ago. I agree it feels kinda weird, not nearly as good in the hand as an XB1 controller, IMO. The XYAB buttons feel too small, and too far in on the controller - as does the left analog stick. The haptics on the touchpads are cool, but I really don't like the D-Pad. Both seem to require far too much force to click down on, making them impractical for anything other than pure touch usage (mouse emulation, etc.). The mouse emulation on the right pad does feel pretty good, though.
I can't say it feels cheap, it feels sturdy enough to me but maybe not as much so as an XB1 controller. In any case, I don't know if it'll get much use, but I may try it on some other games on my Steam Link.