I bought one of these and then later bought a second one. These are very easy to put together. Great for travel because the lay flat. Easy to clean if you put 3 layers of towels down and then a fleece layer. I just put all of the towels into the washer every few days. It keeps everything clean then. I like how I can move the doors to open in or out and I can move them to any part of the cage. On either end or on the sides. My guinea pigs can't get out so you don't need the extra top cover. I can hang the water bottles on the side. I am really happy with these cages and recommend them to everyone. The ramp covers are really expensive though. So I instead cut a rectangle of fleece and laid it over the opening on both ramps and attached it down (zip ties or clothes pins work great). I give it 4 stars because the accessories are way over priced as compared to the cage.