Tell me what you think of it. Do you like it? Do you hate it? Or could you care less because you've got a Mac!
Personally, I hate the new Metro UI and how they have change little features that were in almost every previous version. I really don't like how Microsoft can clearly force there huge (junky) changes on us because it is the mainstream OS in the country. I think Windows 8 is for tablets, and only tablets. After many months of complaints before it's official release, you'd think they would have made a few changes.