Well its hard to believe. After all the years of getting friends and family using Firefox, Opera, Chrome, anything other than IE for a browser... I like IE9.
Its fast, lots of nice touches, both graphical and practical. I like the controls on the url bar, the color coding of tabs and pages. The built in "security" and perfect integration with Windows 7 (my laptop is a dell dual core 2ghz w/ Win 7 and another partition for OSX)
I have latest FF, Chrome and IE and now i'm using IE all the time. Amazing...