I have both the cage and the mat/cover (in blue). I bought it for my chinchilla to get some out of cage playtime so I knew he could not get into wires and other hazards. The mat/cover has held up well to my chinchilla’s daily use for a few months now. The only problem I was having at the time I got it was that my chin would always try to jump out and escape! LOL. I covered the top of the cage with a sheet to keep him in. After he got a cagemate to play with that escape activity stopped, but the locking thing for the door to the cage has to be used, as he quickly learned how to get out of the cage door by lifting it.
I like that the playpen is large enough to allow for some of the larger toys for my chins, like a 15 inch wheel, chiller and hide-out house, and still have room to run and play. Plus its easy to affix accessories like leaping ledges, and water bottles. Keep in mind that it is not quite water PROOF, more like water resisitant, so if you attach a drippy water bottle, your floor will see it. Since my chins rarely pee in the playpen and we get it up right away, I have not had urine burn issues on my carpet. I like that I can vaccum up dust, poopies, and hay without problem off of this cover and it is really easy to rinse off in the yard with a hose if it does get a little dirtier.
Since the cage is completely foldable and easy to set up, I would HIGHLY reccommend this to anyone who anticipates a need (emergency or otherwise) to move their chincillas to another location in a hurry. Take one of these and your furbabies in travel cases with their food supplies and not have to worry about breaking down an actual cage and taking bedding (how long would THAT take in an emergency?)
It should go without saying, any animal placed into a playpen should be watched, no matter how well behaved you think your pet is!