Took me about 30 mins or so to update. I then downloaded the .iso so I could perform a clean install which took another 30 mins.
Not had any problems apart from it failing to activate. Spoke to Microsoft's tech support and they told me the servers are probably getting hammered with all the requests so it should get through within 48 hours. Hope so because it won't let me change my theme or anything and I'm stuck with pink tiles on my start menu ![]()
Apart from that it's gone very smoothly. Everything I've tried has worked right away.