I have used some of these boxes of various sizes to package some of the projects I have made for clients. I've found them to be easy to work with and my laser cutter and editing tools cut and engrave with ease. For the engraving I had to add a masking layer so that high contrast paint could be used easily to make the engravings stand out but the masking sheets to stick well to the boxes. The only downside I saw with this design is that there is no "top" without holes in the corners for a more finished look. I solved this by making decorative pins to hide the screw holes. There is very little space inside to support the internals so I had to make inserts to hold all the circuit boards and such, but it made the whole thing more serviceable so I like it better.