I have to admit I have been a bit of an on again, off again user in the past.
For home use, I have been using Opera as my main browser for a number of years. At work, I tend to use a mixture of FF, Chrome and Opera depending on what I need to do. Reading this article was a bit depressing. Hell, I am typing this reply via Opera on a Linux box.
When I did ISP tech support back in the late 90's, Opera was the browser I suggested to customers to use if they had an old machine. Back then it also fitted on a floppy disk and was faster and less bloated than the alternatives at the time.