After having 10 of varying sizes custom made, these are the best looking display cases you'll find. Easy to construct and well built, very happy to recommend to all. I'll be going ahead and ordering a few more for my own kits, now that my kids lego is sorted.
If I were to give any feedback at all, I'd suggest developing something to cover the screw heads on the base so that when you stack them, you reduce the risk of scratching the clear plastic on the top of the next display case; Also, sometimes the screw holes in the middle didn't quite align - not really noticeable once you're done building them, but just made those screws a little harder to tighten. Otherwise, love them in every way!