This is neat! The gameplay is pretty simple - and I feel as though the difficulty becomes trivial once you've got a medbay and a supply locker on any floor with air - but simply running around the station gradually repairing more and more of it is very satisfying all the same.
One really minor quibble: I notice that the resupply sound plays while you're standing near a locker, but your repair gun doesn't replenish unless you're also looking at it.