I've enjoyed my Surface Pro 2. Windows 8 is quite nice on proper hardware. It's nice to have a full blown computer in something that is heavier and bigger than an ipad, but not terribly so much heavier.
It's great, although I only ever use the kickstand on a desk. The most frustrating things with the Pro 2? The continuous oscillation between needing the keyboard attached and needing to take it off again, which is difficult with one hand. Also while the type keyboard is excellent in use, my two-year old managed to pry a key loose in seconds. Said key is lost in the meantime.
Other than that it's the best non-desktop device I've ever owned.