The K7S5A is a little picky with what PSU you use, but so are a lot of other pricier motherboards. I've had no problems with mine, nor has my brother. For me, it's been very fast, very stable, and the on-board LAN is superb. If there's any complaint I have about it, it's the fact that's almost devoid of any tweaking features (I use SetFSB to overclock). Then again, this board was never meant for the hardcore PC enthusiasts to begin with.