After having this crate for two months I've come to the conclusion that this is AWESOME. I am buying two more... one for each dog. It is easy to store (folds flat), transport (MUCH easier to set up in a SUV or car than one of those metal crates), carry (the handle is nice), and clean (take off the cover; wash, dry, put back on easily and there are no issues with wear and tear from the W/D as of yet).
I bought this originally for two puppies that we adopted when they were about 4 months old... A Border Collie Mix and a Flat Coated Retriever - about 15 lbs each. I crated them together in one 36 inch crate for about two months. They're too big to sleep together in the crate at the same time - now 40 and 30 lbs - but individually it fits them perfectly. The 36 inch size may be too small for the retriever when he is full grown. The 70lb limit set by the manufacturer seems accurate. And yes, my dogs do chew, but they haven't taken to chewing this crate, or it is so minimal I haven't even noticed.
What we put in the crate for them was a thick dog bed covered with a blanket, a couple of non-squeeky toys so they could chew at night and not wake us up, and one of my night shirts that I didn't mind being chewed on. My husband read something about putting worn shirts into the crate since it has the owner's scent on it, the puppies feel more comfortable.
We also have a Keeshond who is almost four and I crate trained him until he was 1 1/2. He will freely walk into this dog crate and lay down with the door open. He's not as keen on the idea of sleeping in there all night, but that's just because he's used to sleeping on our bed.