Looks like a great machine, if didn't already own an SP2 I would definitely consider it (although I question the utility of full Win8.1 on an 8.3" tablet - why not release an RT-only version?). Much nicer than the Venue 8 as long as you can give up an active digitizer IMHO. There's some nice features that don't get listed in the official fact sheet. Check the video:
Looks damn good! But I think full Win 8.1 will be a bit of an overkill for me given my specific use scenario. I wish they would provide an option where I could choose which flavour of Win OS I would want on the device (and give me a corresponding discount!).