I approached this whole thing with real enthusiasm, but i must say after a few days of using it i just can't bring myself to like it. It tries to do everything but does northing well. Its a frankenOS. Its almost like microsoft woke up one morning and decided the best way to transition from a land rover to a Lamborghini is to cut each in half and weld them together down the middle seam. Eish, its a bit of a disaster tbh.
Metro just seems so wasteful on a desktop computer, and really not that pretty, which is sad considering you give up so much space to achieve the look. Sure, i suspect it might make more sense on a tablet but on the desktop it just feels so wrong. In trying to compete with tablets microsoft have really screwed up the desktop experience. Perhaps by windows 9 or 10 it will all come together, but for now i think most normal humans are going to hate it - atleast when using it on existing non touch hardware.
Booting into OSX or windows 7 just brings with it such a sense of relief, which is kinda sad when you think about it. Microsoft are a 100 billion dollar company, surely they could do better?
I predict that Apple are going to pick up a lot of new customers looking for some order and peace.