I have used Opera as my primary web browser ever since version 8.0, since then i've also started to use it at DS, Wii and Windows Mobile..
Once in a while i happen to use Chrome.. but i've customized Opera so much and gotten used to it, it's the perfect browser, if not a tad heavy on my aging laptop.. but that's my only "complaint" on it, except the fairly small userbase making it ignored at some web sites..