I've used IE7 since beta1 thru RC2. I like it. That said its not fun to run on a computer with only 512MB RAM. I also use FFox but I like IE7 a little more. I like the polish of IE7 and the way it renders pages over FFox by a tad. But then I like the look and feel of Vista and IE7 is definitely designed to be in that style. FFox reminds me of the fugly X desktops you get with most Linux distros (KDE, Gnome, doesn't matter).

-Ben
HT v2.0
HT v1.0