I like Windows 8. I admit though, I had nearly a year of use in the pre-release to get used to it. At first, when I tried it, I was put off and a little weirded out by the colour scheme and the boxes and the drag up to get past the lock screen — I wasn’t using a touch interface, after all. Once I got used to it, however, I found I really enjoyed it.
It’s on the machine my 4yr old uses a lot, and she really likes it as well. Very easy for her to get to what she wants, ans she thinks it’s pretty. :)