The presentation is very good and the idea is cute, but unfortunately the strict time limit spoiled most of my enjoyment. There just isn't enough time to pack the stuff unless you get almost every placement right on the first try. Even if you go out of your way to avoid gigantic or awkwardly-shaped items, you still have to deal with the modifiers (Volatile in particular is annoying). The game feels like it wants to give me interesting optimization puzzles, but I can't go for them because there's not enough time to solve them.
I also felt that there was a mismatch between the stressful packing gameplay and the lighthearted, chill theme and presentation.