This is something I'd really like to have for beading. As storage systems go, it's unique in that the lidded compartments pop out. When I'm beading, I'd much rather deal with a couple of little boxes than a large container, and it makes clean-up much easier when you can swipe a bunch of beads from the table into your hand and then dump then in the little box. Or, when starting to bead, to be able to dump the contents of one little box onto the beading surface, without having to dig them out of a compartment.

In short, I think the detachable boxes are a great feature.