God I have to learn to stop reading the comments on this site. What is with people? The OS looks great, it has a modern look and great functionality for mouse and keyboard users as well as Touch. It seems to me, that anything Microsoft puts out, most of the commenters here are just going to complain. Who the heck really cares about the numbering? This OS is in it's developmental infancy still but promises to be the most powerful version of Windows ever released. Seems to me that too many people are stuck in the 90s with what they want. "waa, I don't like the metro icons on the start menu" you don't like them, don't put them there! If anyone really thinks for a second that those are mandatory, then the ignorance issue here is a lot worse than I thought.
What I see with this version of Windows, is a nice, attractive, clean interface that will work as good on my desktop as it will on my server, laptop or tablet. Great Features like native iso and vhd mounting (Thanks Windows 8), Virtual Desktops much like Microsoft's own sysinternals Desktops.exe (people can stop crediting mac OS), fantastic multi tasking (snapping up to 4 is great), enterprise management, and awesome search capabilities.
Don't like it? Stop complaining and use something else. I would expect a website of technology enthusiasts would be excited to at least give it a try before judging. Slap the preview on a VM and actually use it before you have the right to complain
/RANT