>>2213
>>2186
I bought a Surface Pro 3 for doing drawthreads and sketches and such. I ended up using it more for writing, but it's not too bad if you want a lightweight, Cintiq Companion-like device for $1000 cheaper. There are a few things you should know before jumping at a Surface device, though.
Firstly, there are a bunch of different models:
Surface
Surface Pro
Surface 2
Surface Pro 2
Surface 3
Surface Pro 3
Surface Pro 4
Surface Book
I wouldn't go with the Surface or Surface 2, since they're running Windows RT--and therefore, you probably couldn't get MS/CSP, Photoshop, Krita, or anything else to run. The Pro versions of each work fine. SP1 has battery problems and a crappy kickstand. SP2 is pretty good.
The Surface Pro 3 and Surface 3 are expensive, but don't feel too bad to draw on.
The Pro 3's screen size is a huge improvement over the previous generations--on the SP1 and SP2, you had to sacrifice space for either your tools or your canvas. While it worked, there's enough space on the SP3 for both.
The Pro 3 has an issue with low-speed linework, though. If you slow down and try to draw a very precise line, it'll look wobbly. Drawing at normal speeds works fine, though. SP4 apparently stabilizes that by a large percentage, but not completely.
There's also the issue of drawing on glass, especially with the default plastic nib. I've gotten so I don't notice it, but if you're used to how your Intuos tablets feel, you almost definitely won't like the Surfaces at first. You probably won't find your pen "slipping," though, which is what some people seem to be afraid of. If you have control over your pen on paper, you'll have control over your pen on a Surface.
For everyday sketching, anything in the Surface series will work fine (except the non-Pro 1 and 2). For serious painting, you'll probably want an 8GB model for your 5000x5000 canvases.
As >>2213 mentioned, Surfaces can be buggy. My SP3 has run into plenty, and they suck. The bugs almost always happen when you're opening the device after it's been asleep. Sometimes the keyboard and touchpad won't both work (pull it off and reattach it till it works), and sometimes touch fails to register at all. Restart to fix that. It's pretty quick on an SSD, but still a pain in the ass.
Also, Windows NSA Edition brings more bugs, but they're far more OS-related than Surface-related, such as having to retype your PIN on wakeup even if you have it set to not ask for a PIN on wakeup. Newest update fixed some issues, so at least they're working on it. I recommend staying on 8.1 if you have the option; it's just as fast and is less buggy.
Pre-PS2 era emulators work fine if you want some vidya on the side. Graphics are Intel HD 4000, maybe 5000 on one of the higher end models IIRC.
TL;DR: Buy in your price range, they all work for art. Later generations have more screen space. SP3 and above use N-trig instead of Wacom. Don't buy Surface 1 or 2; 3 is fine. Buy higher-end if you want to work with huge resolutions. The i5 models are a happy medium.
(Pics related are sketches on an SP3 using Manga Studio 5.)