I haven't really had time to push my system really hard yet, although it should be able to go pretty well, since all of my components are new.
I have a friend who bought his the day before I did, and he got his up to 148FSB, using the older Intel ATA drivers and an old 4GB hard drive. He was also using the onboard i752 video, so I guess that might have held him back too.
My system:
P3 700E cB0 S370 SL45Y
ASUS CUSL2
128MB PC133 SDRAM (Buffalo RAM......silly name )
CL GeForce 2 GTS
SBLive VE
Quantum LM 20GB
ASUS 40x CDROM
Word on some of the message boards here in HK indicate that the v6.00 ATA drivers are quite a fair bit faster than the 5.xx drivers. I haven't formally benchmarked the system as yet.
One problem I have with the board is the additional USB bracket. You have to stretch the cables between the PCI slots from the back all the way to the connector pins at the front of the board. I don't like things floating around between my cards, especially if it might obstruct airflow. I might take out the bracket for the time being since I don't have that many USB devices.