Free VPN. Built-in adblock feature. In these ages, a free VPN is a must have, especially for marketers who want to see what there search engine results look like from other parts of the world. And for people who want to keep their search engine history from the prying eyes of the government.
And Opera has always been on the up-and-up with it's innovations. Heading the browser innovation by being the first to have tabs, being the first to come up with private browser, first to come up with browser sessions, etc, etc . It's also surprisingly fast.
I'm still getting use to it's UIs. Oh and the advertisements in the new tab dashboard is a pain, but they have to make money somehow. Even Mozilla Firefox which has added "sponsored" websites to it's tabs page and it's open source.
Helps me browse the internet faster and with a VPN. More privacy controls, and general greatness. VPN is what brought me here because I need it for my development/marketing needs. And the general fast speed and great extensions is what made me stay.