Got mine done about 45 mins ago. Seemed to take an hour to get through the whole thing. I did have to use the WPCentral method to force update, i guess its easier when using a laptop with a wifi on/off switch =P So far I really like it. I had already seen a lot of what mango was going to do from a microsoft rep, but i am really sorry for leaving Windows devices right now. haha I realized that deep down, i am always going to be a windows girl and android is my filler friend. I still love my EVO 3D but my Arrive is going to be stuck at my side for a long time. This OS seems to move so fluid and the little integrated tools make life so much easier. Its nice to have a phone that does it all without having to download a ton of apps.
Sorry for my long rant but im just feeling so at home now
PS Is anyone else stoked that they can now use their own mp3/wma files as their ringtones? Granted you have to edit them to exactly 30 seconds or less....its nice to be able to make the phone more you...right?