I want to like this game but agree with other posters that the default mouse sensitivity is super high compared to the walk speed. I had to turn it down to less than half -- half of its current default would probably be a good default for most players.
Also had the framerate go super low as soon as I got to the first outdoors area, to the point where I could barely move and had to quit.
The first area was solid though and had the kind of gameplay I really like from a Metroidvania, I plan on trying it again after some updates.