Pretty fun. Reminded me of La Mulana, especially the confusion - tho the teleporters sometimes were admittedly frustrating. However, after some trials with the map, I did get the symbols to work properly and progress. You could always intuit where you were. Though the left "plus" triangle threw me off, I admit.
But not in a bad way. I do think in a bigger game, the teleporters would probably end up too much, but for this, they sure worked for what you were going for, I think :)