I've been playing around with chrome for a week and here are a couple things I like:
1. Search/Find function shows up as highlighted words dynamically on the web page. You just can't miss it!
2. Downloaded files sort of que at the bottom of the page so you can run them when you want to.
3. Speed is good. I haven't upgraded Firefox to 3.5 yet (I'm so lazy...) so we'll see if that helps out the slowness.
Something I haven't checked out is that 'incognito' function for browsing. It sounds so provocative!