My first 30 minutes with Google Chrome has gone well. I love that new tabs opened by a middle-click are inserted into the tab list directly after the active tab, not at the end. Keeps tabs with the same basic context together automatically.
Other than that, it's roughly the same speed (from a usage perspective) as Firefox, though my machines tend to be plenty fast anyway.
I love the polish. Every little feature is either just right, or better than other browsers. Keep the best, improve on the rest. For example, the active text-entry box is clearly highlighted with a colored border. Simple, but tasty, and now I'm spoiled when I use other browsers that lack those polishes.
Polish that Chrome (cough).