Definitely durable trays. Very nice to be able to stack washed eggs up without needing so much counter space to dry, and then store them until need to box them. Restaurant kitchens have been pretty respectful returning them every week too, nice to cut down on trashed cartons.
If I had to nitpick something, it is that as pictured the wash water holds in each "cup" and the point of the egg stays wet until boxing. I've been using them "upside down" to drain the wash water better, but there's still a water ring... I drilled out the cup tips with an 1/8" bit and that's better... Still a 5 star product.
Oh, and fyi, they need rotated 90* each layer when stacking, i.e. 5x6 then 6x5.