I got mine in. It's very nice, minimalistic, smallest bezel I've ever seen, aluminum and no sharp edges anywhere. It has some nice default modes, but the RGB lighting is very buggy right now; reactive touch RGB mode does not properly randomize the colors and red shades come out far too often, and full single color backlighting mode seems to be too dim, compared to the effect modes (like sine wave) being far brighter, and white is so dim and not toned right, it looks like pink. I suggest you report those bugs so they can fix them. The raindrop and Matrix modes do look good, even though it's no ducky.
I'm not sure if I would return a K70 Lux for this; unless you hate RGB, the Corsair has far more capability; might be worth keeping around.