I picked one of these up and so far, I am impressed. I haven't loaded it with cards yet, but I am excited to do so. I plan to use it to hold class decks. A quick test shows that the ultra pro deck boxes (such as this) will fit in the top two slots.
Do the PACG deck boxes fit though? It doesn't look like it, and I don't want to risk buying a chest it they won't fit. I like the fact that they can hold my PSACG deck including the class deck and ultimate deck, all neatly divided. I have a separate box for each character, so it'd be nice to have an official case to carry them in plus my dice, but I get the feeling this chest isn't it.