The plastic is that kinda cheap stuff you make children's toys out of... we've got a Little Tikes picnic table that's pretty much the same, kinda poofy, soft, and relies on folds to give it any structure. That said, it's also nicely rugged, and the pieces are rigid enough that they feel sturdy. One of my side panels was a little warped but it could be forced into place and screwed down.For what it is, it might be a bit expensive. It's twice as much as similarly sized wooden options, but then you're carrying wood around.Ultimately it's just a carrier for five metal serving trays. This is probably the main problem... these trays are cost effective for them because they're produced en masse, but they also massive space wasters. The outside rim and interior bevel sucks up at least another row of models, while the dips also screw up model clearance. Buuut... if you need more trays you can also just go buy some.Personally, I'll probably make some sheet steel covered MDF trays instead to maximize the storage space, but that's more cost to an already expensive solution. It's definitely cheaper and more flexible than magna racks, though.