If anyone is wondering how 3D Slicer runs on a Surface Studio… It is just awesome! I had a chance to try it in a Microsoft Store (it helped that Slicer installation does not require administrator access anymore).
Thanks to recent improvements by @Sunderlandkyl, drawing with the surface pen is very smooth. The programmable wheel controller is very handy, too (I just added a prev/next slice action but any other shortcuts can be added).
A short video is available here: