It seems like they have a lot of well thought-out boards, and their motherboard packages are sweet! I mean, how many other mobo companies sell their boards with rounded-cables? That's just boss! I'm always slinging those damn flat-ribbon IDE cables in the garbage and installing round cables. Then, on many of the boards, they have a processor socket that's not crowded out, a heat flange to protect your inputs, and on top of it all, their boards tend to look trick rather than dull "capacitor-farm".
Still, even though they look sweet and offer some sweet bonuses to their board packages...you hear so little about them. That makes me leery.
I have to agree with Nubius about the ASUS boards. Their latest boards don't seem to be that impressive. In fact, out of their whole line, I've only found one board that I was impressed with enough to consider buying it. I know they're a solid company that's been around...but I think they're drag'n a bit.