It' not out yet but I've been using the preview on two mitx pc's and a laptop and I like it a lot. I never got on with 8 or 8.1 but I will definitely be upgrading all my win 7 machines.
Just what I was about to do I haven't even looked at W10 yet. I hated W8 with a passion. If it's more of the same I won't be coming away from W7.