I'm using this cab to play at home, but this could very well be used as a bunker! The construction is heavy and sturdy, I doubt this will ever break.
I play mostly metal, and this thing can get extremely loud when you crank your amp! I'm still experimenting with it, but so far it sounds fantastic, I'm waiting for the speakers to loosen up a bit.
Buy this if you don't plan on moving it around too much, if you want to move it, buy wheels or buy something else.