Aesthetics wise the game is nice (even though I really miss some story unfolding around as you climb - maybe, in form of drawings on the wall or something like that). Gameplay wise I really missed checkpoints. When one wrong move of yours can send you straight to the beginning, it stops being a meditative game I assume it tries to be judging by the atmosphere, and becomes something like Getting Over It.
Many people here raised their concerns regarding the sprinting speed and weird crouching, so I'm not gonna repeat their words. What weirded me out the most was the music player on the top of the tower. Why does its music sound so weird when you start moving closer or further? I though, this 3D sound behavior was not a thing since Unity 3.0...
Also, how do you access pause menu? I tried my best to open it, but there seems to be no way to do that.