I'm not exactly an expert, but I have been using it for about a wekk now and have had no trouble whatsoever. Doom3 and Far Cry still run just fine and some of the new security and download features are rather nice. The new wireless networking setup and access wizard is far and away better than before too. Only thing to caution is that people with Athlon 64 systems are being advised to pass for now until some bugs get worked out. I dont know what said bugs are but it is appearantly enough to hose your install. As with any big update though, back your stuff up first.