Teething puppy!
Ordered the box for my 3-month old Border Collie... unfortunately the zip fastening and material didn't stand up to her chewing it every night, so now the entrance doesn't close any more. She did seem happy and settled as soon as we put her in it though, and it's quick to assemble and easy to carry. If you don't have a puppy that likes to chew, I'd recommend this carrier.