1. It gets out of the way. Very unobtrusive. I really don't notice the browser, I just use it. Searching on the same bar as the URL has just become natural for me.
2. I like the "quick dial" thing they copied from Opera - when you open a new tab without a URL the 9 most commonly browsed pages come up in a 3x3 pattern as thumbnails. The visual cues really make this a fast way to select your fave pages.
3. It's refreshingly honest when something doesn't work. For example, when a plug-in dies, it says "The following plug-in has crashed..."
4. The Gmail integration is very nice indeed.
5. Some interesting stats tools are built in. Plus an easter egg.
I have basically given up on IE, except for testing. Firefox: I like the addons (Firebug, Wizz RSS viewer) so I still use it daily. However, Chrome is what I use most often for generic browsing.
