Cool game, enjoyed it overall! Feels good to drag the boxes around.
I think if you needed to drop the packages on top of the big "Storage Boxes", things would be more interesting (maybe the Package Spawner was the one on top?).
Difficulty could probably ramp up a bit faster aswell, seems like you spend more time on the "easy" bits then in the more interesting harder "get good" moments, after diyng a couple of times I was kinda thrown off to going in again cause it would take too long to get to were I was.