Fanboy .
Its smooth.
Yes some pages don’t load properly.
But is faster than firefox,and more stable, even faster than firefox 18, and hardware acceleration and webgl is disabled by default. It blocks more non wanted advertising, and I’m not talking with extensions.
The only major issue in Opera is the print system. It sucks.
I always use beta versions and i have no crashes at all. Before complain do a clean install.
Try this web site with Chrome and Firefox. Then try with opera.
http://thelatinhouseblog.blogspot.pt
.Compare the results,then you will see wich browser really sucks.