I got this as a travel case for my Eurorack modular setup. I managed to fit 3 rows of 84HP modules installed in Tiptop Audio Happy Ending Kits into this case without any problem. I'm not sure I would trust putting this in an airline check-in cargo but it's fine for driving to gigs.
Pros: Solid build, fits 3 rows of 84HP modules. Can be modified somewhat (see below).
Cons: Slightly oversized for this particular purpose. I had lid clearance issues with some knobs on the top row but this was easily solved disassembling rack rails and tilted side mount boards and trimming them at the bottom.