Does it have the old-school Aero transparency? That's the one thing I really miss from 7.
You mean for the start menu? Mine has, and it says that if it doesn't work you can just download a plugin that does the thing ;)
My experience with it has been phenomenal so far!
As a side note, this discussion moved away from Build a bit much I guess... so:
Spoiler:
.NET is now open source! Wooo