I liked the atmosphere. The battery thing wasn't my favorite mechanic ever, especially since there was no work around. Like smashing boxes and revealing another. The conveyor puzzles were fun.
Thanks for the feedback! :D I'm not sure if you noticed but the music builds up more when you complete puzzles, I think that really adds to the atmosphere as well. The batteries do run out a little too fast though, but having them be unlocked by puzzles was the overall idea.