Apparently though it has some advantages in being geared towards tablets in that it is supposed to be very, very quick. Which is interesting, but yeah I don't like the look of the 'Metro' layout and I don't like the sound of the idea that you can't resize windows the way you want, it only allows a 75%/25% split of windows on your screen which to my mind doesn't sound right.
I'll probably end up getting it at some point in the future, though because no doubt a new version of direct X will come out and only work on Windows 8, meaning anyone wanting to play new games has to upgrade.