I reserved my copy of it because, worst comes to worst, I have a retail version of 7 that can be used to downgrade if it turns out to be crappy. And the vast majority of the reviews that have been coming out say that 10 is actually a decent version of Windows. That is surprisingly optimistic, as far as windows reviews generally go.

The only concern is if it is going to be a strait upgrade. In that I mean, I run win7 professional, so hopefully the upgrade will be to the professional equivalent. They don't make that very clear in their reservation blurb, and I've been too lazy to look it up any further.