I like this game and the art style, I did end up having to quit early due to the difficulty for the sake of my blood pressure. I think the levels could be adjusted to be a bit more forgiving or support multiple play styles (dang that low hanging bump at the edge of that room on the left, in the room where you have to get up and dash across the 2 sets of spikes). Currently it feels like a puzzle game where the solution is to input the exact right control sequence at the exact right time, which has it's own appeal to certain players, but I'm the type of player who bounces off of Dark Souls because it's too hard for me lol.
The music, atmosphere, and graphics are all really great, and the main mechanic of switching back and forth reminded me of "that level" in Dishonored 2 with the looking glass thing, in a really fun way.