I'm not a huge fan of the new Opera browser, so please give us back our Opera Classic.
Why? What's the problem with the new Opera?
Opera Software is not developing the old Presto-based Classic versions anymore, so give constructive feedback so they can make the new one better so you can eventually jump to it. Anything different than that is not happening, unless you choose to switch to another completely different browser.
I don't like the UI. I don't like its tab management. When word wrap or text reflow is enabled, it becomes very clunky and is not as fast as smooth as with Classic. I don't like the way it renders some pages. There isn't a loading bar indicator. When viewing a full site, as in desk top (not mobile), it always defaults to zoomed in and not overview like in classic.
My device is a Nexus 4, so the problem isn't a device that can't properly handle a full fledged web browser. Opera just went in a different direction with their new browser, but that shouldn't mean they should give up on its previous version, especially when Opera Mini is still fully supported and for the most part remained unchained as far as UI and performance.