I installed it a few days ago...

So far, my computer shuts down and reboots a lot faster. Sadly, my programs that load at startup, ATI, Anti-Virus, Steam, Etc etc, Load a lot slower than before the Service Pack. Takes a good 2 minutes to load everything, when before the Service pack, it took, a good 15 seconds to load everything. So I am not sure this is a fix...