Against all odds, Chrome is my primary browser also (Windows for both work and home). I'm addicted to the speed and stable memory footprint and I only use FF for Firebug. I tend to leave my systems up for days at a time and I would always end up having to close Firefox daily to gain back the memory it had swallowed.

I use it just for short bursts of web 2.0 and javascript intensive browsing. It slows down my computer a lot, GoogleUpdate all the time touching some files, chrome itself maintaining its database. I don't like my harddisk led to be blinking constantly.