Loki loves this bed. He is 65 lbs and uses a Large. We set it up in front of the window in the living room, we put it out on the deck to help keep him cool when we hang outside or go camping. As dogs age, laying on the floor puts stress on their joints and in the summer time, using a stuffed bed can just be hot. This is easy to assemble, the poles are metal and durable, the bed is breathable. I love it!