I actually have no problems with my ubb6 at all. The only bug I still here about is the cookies, but I wouldnt know! I use Hate98s Login hack and that fixes that, so even if they left it alone now its a much better product than my 547d was. As far as bandwith
I here alot about that issue too. I run a small board on my own dedicated server with my own connection and that is less than it was with 547d
In short my board works perfect at 8.1 beta
