I'm a long time Opera user since when they used to sell licences. I was always a happy Opera user because the browser suited my browsing style much more than any of the competitors.
Then came Chrome, after trying it for a little while I was blown away by the browser and its capabilities.
It was fast and robust and I really liked it, but it didn't get me to convert from Opera.
It wasn't until the "cool" guys at work started using it I decided to give it a proper try, so that's what I've been doing the last year. Evaluating Chrome. I have really been enjoying the experience, though noticed that it is not quite as robust and stable as I thought it would be + there is the compatibility issues because everyone build web sites for Internet Explorer explicitly.
With this release of Opera I'm probably going to go back using Opera again and leaving Chrome as my default browser. Even though I've enjoyed the time I've had with Chrome I've always felt that something was missing, small simple thing I took for granted when using Opera.
I tried Opera 11 beta for a day already and it feels like just right, better in all ways. It suits my browsing needs better. I feel safer as well.
But even though I'm reverting to Opera I'm still going to continue advocating Chrome for family and friends because I believe that it will give them a better browsing experience due to the fact it has superior user interface, browsing experience still similar.
I think Opera has lots to learn and could most definitively do something to their user interface.
Keep up the good work Opera I'm coming back, and as with Chrome I will fall back to IE for the sites that require that.