I like the concept a lot, although I may simply be too good at typing for it to be a challenge; the meter never got above 5% or so on my play-thru. I wound up starting it again and not typing anything to see what the the failure state looked like.
Just to confirm – when the main character says “I made it!” after the vibe runs out of battery, that’s the end of the game? I wasn’t able to advance the dialogue beyond that, want to make sure that’s intended and not a bug.