I have been working for 2 weeks with Harmony 15 on the cheapest Surface Go. So far the experience has been pretty good. I use Tablet Pro to run touch buttons to help out. While not as good as my 16" MSP its a lot cooler and lighter. I have not tested working with puppets only 2D bitmap. I have experienced almost no lag in drawing.
One feature request, not sure if it’s in 16, is that there should be an option to disable touch on the paint and pen tools while still allowing gestures.
Hope this helps!