Chrome rocks absolutely!
It is blazingly fast, and feels ultra light weight. After using it for a few weeks now, I am totally addicted.
The landing page which shows snapshots of all pages recently viewed, is very convenient to start off and I feel great to just be able to click on a thumbnail and get to the site with out examining the url on my url bar or clicking on a bookmark. In fact the landing page is something that has really made a lot of difference in my browsing experience. I don't get lost as often as I used to and it saves me a lot of time and effort.
I love the incognito mode which allows me to login simultaneously as different users, even into web applications which use permanent cookies. This is great for developers testing web applications.
I like the ability to drag a tab and create its own window and vice versa.
Space usage on chrome is very efficient and the concept of getting rid of the windows title bar is a very good one. The concept of showing page popups as part of the same tab but hidden down below is also quite useful.
Honestly speaking I don't care much about being able to type the search terms or url into a single box. Surprising that Google talks about that more than the other features.
My default browser was Firefox, but now I am converted.