Was difficult to put together, detailed instructions would have been nice. I finally got someone else to do it who was able to stretch the material enough to get all the parts to fix. It is large enough for a much bigger dog so sometimes two or more of my small dogs use it at the same time. They seem to enjoy it. I actually bought it for a dog I foster who was terribly abused and she is larger but fits well with extra room to stretch out. I think she likes it being up off of the floor.