Like the OP, I bought my ASRock based mostly on the positive opinion here on OCN. I got the z68 Extreme3 Gen3 to go with a 2500k somewhat budget build. I haven't had much time to play with it, but it hasn't given me any problems yet. It looks fairly good, runs 100% stable (haven't OC'd anything yet though), it's not an energy hog, and it has plenty of features/gizmos to play with when I get bored. The only complaint I've had with it at all is that when I first built this rig, my USB mouse movements were backwards in the BIOS. An easy BIOS update fixed it.
I'm old enough to remember the days of Biostar, MSI, Shuttle, and even ASRock being only slightly useful, and then only for an extremely tight budget. The stability and build quality was always sub-par, and they almost always lacked features common on most other boards. Now, however, Shuttle is defunct, and Biostar, MSI, and ASRock are quickly gaining a reputation as reliable brands. Based on the good reviews I've seen around here, and my own (admittedly limited) personal experience, I wouldn't have a problem recommending an ASRock mobo.