I actually installed it back in June on one machine. Didn't work well at all then, but they have made significant improvments. Like the betas of 7, there are sites it just doesn't work that well with, but for the most part it was pretty good. Most of those sites were forms where it didn't handle the selection menus very well, same type of issue that 7 had. I think that's more with the design of the form not recognizing the browser then it was the fault of the browser if I remember the updates they did when sever was in Beta.

I think the text search on the pages is a much needed improvement, and like some of the other features. I'm using that and google chrome equally as much as each other right now.

The most common error I see are too many instances of Java, but I'm sure there will be a java update before it goes to it's final version that will address those.