Renders a lot faster too. I had to use IE for the first time in about three years last week (I originally used the Mozilla browser - now SeaMonkey - before moving on to Firefox) and jeez, it's slow!
Wow !!! I just installed it, as I'd heard so much about it and WAOW ! It IS extremely fast ! I'm well impressed.
The layout is going to take some getting used to, but so far ( about 5 minutes ), all is well !
It is also blocking pop-ups on a particular site that IE never completely blocked !
For me, it's the tabbed browsing (though IE7 does do this) and more importantly the cool add-ons you can get. My faves are TabMix Plus, DownThemAll and SearchEngineOrdering.