Idk if anyone else has tried this control scheme, but I played using my 2in1 touchscreen with one hand, and w/s on keyboard with the other, and I found it quite nice.
I do have to say that I underestimated the bossfight. took 3 or 4 tries, with most of the difficulty coming from how the game really hasn't forced you to use either of the necessary skills up to that point (turning around quickly, and timing your turn around between the attack patterns.) Made for a good bossfight that felt different from the standard levels! Just hopefully not TOO different for everyone's tastes.
Very fun!
The levels just kept going too! Surprising amount of content, and I'd be down to play even more of it!