People get lucky, some people get cheap parts.. but it's also problem with those 815 inf.. it's a bit of everyone fault. Intel not letting people know which inf to use, etc. people using really cheap memory, bad bios programing from asus.
You can always give it a try but I just don't like to run agp too high up to 89mhz. There are ther board, msi 815 pro seems to be a good alternative to the Asus cusl2