I've only used one box but it was hard to put together. I used scissors and my hands to separate the dotted lines but I needed a box cutter. The instructions weren't clear. I needed packing tape to reinforce a cut I shouldn't have made.
Perforation at seams rips easily. But for a basic box it’s just OK. Not suitable for long term storage. Kind of cheaply made. This is probably the worst review I have ever done of a Staples product. I’m usually 100% satisfied.