On my desktop (GTX 260 GPU) playback is ok and i haven`t noticed any bugs, still waiting for my gf to leave the TV so i can mess around on my HTPC, but will probably fall asleep before that so i`ll probably get back with some feedback tomorrow

I just installed XBMC for somebody in the USA over Team Viewer today on an i5 laptop (using the Eden Final + HD audio build), the only bug i noticed was that when installing an addon , when you pressed Enter/Ok to install it it would freeze for a second, then become functional again. But didn`t test out much in terms of playback, i`ll find out tomorrow in my emails
