The controls felt really... floaty in a way that was unpleasant, like it was difficult to figure out where I was going to land or where my jump would end up in the air. The tutorial at the beginning also didn't mention there was a double jump, which took me a second to figure out in the second level when I couldn't reach the platform normally.
The snarkiness of the narrator was kinda fun, it could be a good theme for the game if it was expanded, though making a snarky game is threading a needle a bit -- it only works if the players feel their failure is their own fault, and not if they feel it's the game's fault. If you fail in Portal and Glados makes fun of you, it works because you know it was your own dang fault you screwed up.
Overall, congrats on the game!