I have had this card for a month, with no problems. I forgot how much I love Nvidia.This card is massive, and it rocks. I can run ALL games with it. Metro 2033, has some low frame rates, but its maxed, and still very playable. Make sure you have a large case, because you are going to need it.
I was considering SLI 570s, but I actually spent less on one 580, then two 570s, and it gets the job done. So stop looking, around and buy this. It took me over a month to pull the trigger on this. Now my rig is ready for this gaming season, BF3, Rage, Skyrim, Borderlands 2, Mass Effect 3... Do it already!
If you still are not convinced, check out 3dguru.com and toms hardware. Buy the extreme edition only if you game at high resolution (over 1080p) or using multiple monitors. That's all I got.
i7-860 /oc 4ghz
MSI GTX580 Lightning
8Gb Fata1ty ram
Corsair tx850 pro
Cosmos II S tower
*Edit* Deleted some bad info