It has to be said that, well... it's better than Vista.
Still get more grief trying to configure it (especially networking - wired and wireless) than Ubuntu though (and given that Windows is only kept on the machine for games that grief comes from very little configuration.
Why, why, why does it "forget" how to connect to our wireless network every so often? And then insist all valid connection details are invalid?
In my more paranoid moments, I wonder whether MS have learnt from the XP->Vista debacle and have gone back to making the interface confusing, and functionality intermittent, in order to ensure that people will always upgrade to the next version in the hope that it will fix the issues!