Ditto here, on two Mac mini’s, a PowerBook, and a PowerMac. No problems from one end to the other. Of course, there were no problems before the update, either. These days I’m restarting my Macs about once a month-- whenever there’s an OS X update or a security update.
Mine went OK, too, but my next door neighbor had her Mac update hang, requiring a hard reboot (after she called me over to find out what was wrong with this machine that I recommended she buy… harumph… neighbors). Everything seemed fine after that.