Summary: That annoying USB problem notwithstanding, I had a very positive experience with the KT7A-RAID. Granted, my bus speed overclocking experiments were short-lived, but I have serious doubts that the board is to blame for that.
Meanwhile, the board has a laundry list of great features.
Conclusion: The latter half of 2000 was a successful period for ABIT. Their KT7 launched with rave reviews to the public and became a bestseller in a matter of months. It's good to see they built off this successful design for the KT7A.