Windows 10 seems very promising
I just finished building a new PC, which has just about everything you can imagine. I've been using Windows 7 x64 for quite some time, never upgrading to Windows 8 or 8.1. I bought a couple of laptops lately, one of which has a touch screen, and that laptop is running 8.1, so that's been my only experience with it. After running into multiple compatibility issues on my new PC, all of which were errors with the OS, I decided to load Windows 10 on my primary PC.
Well, that was 3 days ago, and I'm happy to say that it's solved the incompatibility issues I was having with Windows 7. My PC is setup running 2 Samsung 840 Pros in a RAID 0 configuration, and the only thing I put on these drives is my OS and any software I use. I have a 1TB drive and a 2TB Hybrid drive, which hold all my personal data (I've setup the My Documents, My Pictures, My Music, and My Videos to use the D drive), and this helps with the speed of my PC and segregates all my personal data from the OS so if I run into any issues with the OS, I could fix it or revert back without risk losing any personal data.
So far, I tend to like the interface. I've spent most of my time installing software and drivers so I haven't had much time to look through the functionality yet, but what I like most about it so far is that it doesn't rely on having to use a touch screen as much, which is good because I'll never use a touch screen on my primary PC. I'm running 3 monitors currently, a 27" at 2560 x 1440, and 2 23" monitors running at 1920 x 1080, and I'm considering upgrading all of them to 4k.
My Asus laptop has a touch screen, but this is used mostly for playing around. I like the touch screen interface, but only for fun. There's no way I could use touch screen monitors on my primary PC, which is also my work PC (I work from home), so the dependence on not having to use a touch screen is definitely a plus. Now I guess it's time to see how Windows 10 operates in an overclocked environment.