Thank you to Danny Parks for letting me try out the Microsoft Surface Pro 3 to make this comic. There were a few pros and cons here.
Conclusion: I could make do with this but would not like it. The MS Surface Pro is also highly dependent on software/settings to feel good to me as I draw, rather than the consistent feeling you get from a few simple, physical buttons around a Cintiq Companion. This device was most definitely unacceptable, and horrible, for drawing until I downloaded the Mischief trial (used for the above comic).