I had the opportunity to play with the Surface Studio this morning at the Miami Microsoft Store.
It's even more impressive in person than on video.
The device had Sketchable and Mental Canvas, the new 3D sketching app, pre-installed. I couldn't install Paint 3D.
The screen is huge and the display is beautiful. Pixels are imperceptible even up close.
The pen appears to be exactly like the Surface Pro 4 and Book's pen. If you think the initial activation force is too high on the current hardware, I don't think this will change your mind.
The Surface app is pre-installed so you can also play with your pressure curve settings if you desire.
Drawing in Sketchable was smooth and buttery, though none of the brushes are tuned to display the full pressure range. This is an enhancement that the developers are working on.
I couldn't do much with Mental Canvas besides rotate around and admire the demo scenes.
My experience with the Dial was awkward. I'm not the most coordinated guy and I'm not sure I can get comfortable with the fidgety interface (at least while working in Sketchable).
I did my usual tests of rapidly drawing Cs forwards and backwards and did not spot any quantizing (linear segments).
can't wait to spend more time with it soon.