Snaps together firmly, though a little superglue won't hurt. Mind not to get any on the roll top though!
Prints best at 0.2mm layer height, since all the key structural elements have integer-mm dimensions.
Steer clear of your more brittle filaments for the roll-top, which I nabbed from here, it's a genius design!
The author remixed this model.
Redesigned the box from scratch, but kept the genius lid