It runs very well. The control defaults are not impairing the gameplay too much.
Being quite new with SD, I'm progressing slower than on PC with mouse and keyboard.
Graphics are a bit fuzzy but I didn't tweak the settings and left them as per default.
Solid. I'm playing it docked, so M&K and a 21" and not 7" screen, but the device runs it fairly well.
30-40 FPS in normal gameplay (without really having to turn the settings way down), running in native 800p upscaled to 1050p, and it really only chugs during a handful of cutscenes that have a trillion elements moving around in the background. I could probably worsen the graphics to get more FPS if I wanted, but this seems like a good balance. Very enjoyable experience so far.