The only thing I have noticed is that when you load a Google theme, the colors along the border are not rendered quite correctly for some themes. I am not sure if it is something within GNOME, or whatever. I assume it will get fixed. Either way, it is not a show stopper for me, since most of the themes work just fine.
Since I am on the developer release, I am going to stick with it for now. There are versions for Redhat/Fedora as well. I use a CentOs box at work, and will try the Google Chrome Beta there to see how it works. I assume all should go well!