I happily made the change from 7 to 10 at the end of last year. I'm a big fan of the more modern, minimalist theme.
I've had no problems with it at all, but like Higurashi, I've only used it with high-end PCs. I can't comment on how it runs on anything less than an i7.
My only gripe is that compared to 7, you do have to jump through a few more hoops to change certain settings. Compared to 8 or 8.1, 10 is better in every way. I can't imagine why anyone would want to hold onto that garbage.