Running 10 on my desktop. One thing. If you are running Steam Games you have have to verify game cache integrity or games won't start.
IE browser seems very fast. I find the Interface a little flat and dull personally.
Gaming seems very quick.
Can snap windows to left right or 4 corners.
Catalyst Control Center will not work if you have that on desktop.
DO NOT RUN NORMAL WINDOWS UPDATES: If you run normal Windows updates your system will not restart. Weird that MS has not mentioned this as a warning. Turn automatic updating off. Once I did a refresh to get back on, I noticed this time that Catalyst Control Center now worked, so who knows?