The cover really drew me in, and the map is fantastically presented.
I've seen a lot of ways to handle a shape-shifting dungeon over the years, but this was a smart and simple way to cover it.
I also lIke the tension level; with the space mutating every few turns and the clock ticking, the PCs have to be very smart to navigate this mission. Having a weapon that can fail and break is also a great way to ratchet it up.
VERY cool.