I was going to hold off a bit longer but Costco had a family pack of 3 upgrades for $125. I've upgraded two computers (my wife's Dell and my Lenovo). They both run much more quickly and some of the features are really cool. The upgrade from Vista was very smooth for both. It will identify some things you need to uninstall prior to upgrade. In both cases they were mainly specialized drivers. It also asks you to go into iTunes to deauthorize the computer prior to upgrade.