Did you all back-up your files before download?
During the install from SP1 to SP2 it does a System Restore, so if it all goes wrong you can just restore back to where you were.
The only thing I dont like about SP2 is the cr*ppy pop up blocker that is a pain in the @rse. Because of it I just spent $230 more than I needed to on the USPS website and although it only took a fews seconds to get debited, it is going to take me weeks to get the money back!
Otherwise it is fine.