I have used Opera a few times, and at the time I was using it, there was no support for SOCKS proxies (something standard in other competitors, always cool to set up a poor's man VPN over SSH). By then, it was important for me to have this in my browser, so I dropped Opera and chose Chrome instead. Nevertheless, I checked the last version and it seems like they implemented SOCKS. Great news, but for now I'll stick to Chrome... BTW, is there any killer feature in Opera ?