Got my Asus Strix OC on Friday. It's huge and heavy, looks seriously ready to remove heat from GP102.
OC has been a breeze so far, put 138 on core, 250 on mem in afterburner and card will happily run 2050-2080 clocks. It heats up to ~72C after long gaming in 3 fan Fractal Define R4, but is more silent than MSI Gaming 980 ti ( heck, it is way more massive, no wonder).
Cons so far: LEDs are turned on by default??? Has tiny bit of coil whine once over 200 FPS, MSI was more solid in this department, would not whine even in menus with several hundred FPS.