I currently have a Surface Pro2 with Ubuntu running. It is my first non-Apple computer in more than 10 years. Which I bought reluctantly when my previous MacBook died and did not like any of the current out-dated models.
For the most part, everything in Ubuntu runs great on the Surface Pro2, except Wi-Fi which is flaky due to sucky proprietary Marvell drivers.
In any case, it is now my primary work computer, and I am very happy with it, although I do really like the newer Surface Pro3 with larger screen and better kickstand.
Apple MacBook Airs are horrible out of date compared to Surface Pro2 & Pro3. No retina display, no touch display, and no pen input. And I trust Linux much more that NSA backdoor'ed OSX and Windows.
The fact is that Microsoft is now making excellent laptop/tablet hardware, even though their OS has issues. I wish that people look at things objectively and stop giving praise to a company that use to innovate but now refuses to upgrade hardware to meet customer's needs. (I am still