Already upgraded, after reboot I BSoD'ed. But hit start windows normally to give it another try and it worked. Took awhile for it to apply 80k update operations on startup though.
The other 3 workstations went off without a hitch. I do not like that you have to select SP1 manually though..
The Remote FX update is nice, I can watch 480p h.264 no lag, 720p h.264 with alot of action starts slowing down, While I dont watch through video RDP, Its a nice upgrade. I wish it applied to my W7 Clients too.