First of all - game's waaaaaay too dark. I had to bump up my system's gamma setting a lot to be able to see well enough to enjoy the game.
That being said, very pleasant experience! Really liked the atmosphere and imo visuals fit really well with the game. Movement was also very smooth and felt surprisingly accurate. I've also had some performance issues once in a while, despite having a very good rig, although this could be a problem with the WebGL build, so I'll check the standalone later.
Overall, really enjoyable experience :)