Well when I say a board isn't good, I don't always mean that it wont work. If that was the case those companies wouldn't be producing boards.
I personally consider gigabyte midrange quality. I've seen quite a number of posts with people having various troubles with them.
They aren't built for OC'ing really, but that's something only I (and OC'ers of course) look at.
For just normal computer use they are no problems. Infact the gigabyte nforce4-4x board when they turned the HTT link speed up to 5x from default 4x it was beating out the ASUS Sli nforce4 and one other board, so you might consider upping that HTT multi to 5x Sui, but I take no responsibility for any damages that may occur