I'm giving it a go, using Chrome, btw.
I've noticed four problems or oddities, whatever you want to call them.
#1, None of the pictures will show, like profile avatars or clan logos.
#2, There seems to be some kind of gap in time, no joke, basically the last 6 days haven't happened on the beta. The latest date I could find anywhere was the 13th.
#3, Perhaps due to #2, my account had timed-out on about 20 games that the real account has not. Likewise, there were probably about 20 games that I could timeout my opponent on.
#4, Lastly, whenever I hop on the blitz micro-site, there's a little pop-up that says "Failed to connect - please check your internet connection.
So far, everything else seems normal.