I enjoyed the game, though I spent quite a bit of time stuck. Seems I wasn't thorough enough, and missed the "up" directional options in two key places. It wasn't until I saw mention of a room I hadn't been in in the comments that I went back and found it.
If I were to give feedback, I would say the game could have been more blatant in conveying the possibility of an up direction to the player, either through the art, or by making the movement arrows always visible (though I understand that might take away from the atmosphere a bit).
A spoiler free tip for any fellow players: Know that this game is designed such that you can't get trapped in any area without the tools you need to progress, and if you feel like you can't find what you're looking for, know you might have missed a room. Barring that, there's the old point and click adventure adage of *clicking everything!*