Windows 8 is great.. for touch screen devices
I've already tried the preview version that was released a couple months ago on my laptop, and it's used great, you can easily understand it and do what you want, but do note that its a completely different thing from what you are used to and it'll look odd/weird/hard at start, but if you keep using it, you'll get along with it fine, if however you use it on a touchscreen device, then its pretty intuitive