This is the finest operation system available for personal computing devices on the market. Nothing else is even close except for Windows 7 and Windows 8.1 and Linux and whatever they have in Chromebooks. You'd be a fool to use any other operating system other than those listed.
I'm quite digging it myself. Works perfectly on my Surface 3, and being able to switch in and out of tablet mode depending on how I'm using it is really neat. Seems like the perfect blend of 7 and 8.