Got mine in yesterday, got it installed today without a hitch. Took a little bit of time to get everything cleaned up, decided to even use the provided backplate. So far pretty damn good results, all I have to compare to is folding, stopped about 50% thru a 511pt WU, one of the heavier stressing WU's. It hits 45C load compared to almost 68C load on the stock cooler @ 70% fan speed. Pretty healthy difference, it was idling at 36C compared to the stock cooler's 42C @ 70%. Granted I did crank the speed up to 100% on this cooler, in my HAF it's very tolerable, I still have the choke squeel during heavy loads like that certain WU, but I expected that.
VRM-wise, I was idling at about 42C, a couple degrees warmer stock, loading about 65-67C which is +/-1C from stock. So thus far I'm good to go, I'm running 666/1458 1188 on 1.06v on a 65nm 216core GTX260 and the temps are top notch...too bad it took me about 11 months to get the cooler I wanted for my GTX260 lol. But so far very happy, everything stuck on and aligned well w/o mods, no extra purchases, I think the VRM plate could've been better, kinda dissapointing, but it's getting the job done atm, so no complaints, the core runs a helluva lot cooler, the memory also does as it generally matched the temps of the GPU, now it's around 34-36C between idle and load. Ambient temps are also down from around 38-48C to 34-36C same as the memory. Sorry for no screenies, I might grab some with the new cooler eventually, but gonna let this fold and do some gaming tomorrow.
One thing I was dissapointed it was the contact patch size only being about 70% the size of the GPU itself, and the contact patch of MX-2 was only about 2/3 of that or so. I had my doubts, but I wanted to try it as-is out of the box and see my results...so I was suprised and very content with my purchase after it was all assembled. Thanks again for the sweet review and discussion thread OnBoard, I hope the 55nm adapting goes well for those of you getting this cooler.