Figured I'd share my experience since I was on here asking almost the exact same questions about a year ago and couldn't find much firsthand feedback at the time. We do high end corporate catering across Dubai and Abu Dhabi and the logistics of transporting plated desserts and delicate canapés without them arriving looking like they've been through a blender was honestly our biggest operational headache. Took a chance on the closed crates from https://www.crateco.ae/productlist/closed-crates after a recommendation from another catering company and ordered ten of the medium sized ones to test the waters. Six months later we've expanded to thirty and they've genuinely transformed how we pack the vans, the stackability means we can fit way more in each trip and the seal keeps everything at a stable temperature longer during transit which was an unexpected bonus. Had one incident where a crate full of chocolate mousse desserts got left in the sun for forty minutes during an outdoor setup because someone forgot to move it into the shade, opened it up expecting a melted disaster but the insulation from the sealed design actually saved most of them, not perfect but salvageable which would have been impossible with our old open trays. Only minor wear and tear so far is some scuffing on the lids from being stacked and unstacked daily, no cracks or seal failures. The handles are also positioned well enough that two people can carry a fully loaded crate without it being awkward. Not cheap upfront compared to the alternatives but if you're doing events regularly the durability and reduced food waste probably pays for itself within a season.