Extremely well built for crate anxiety animals! The only complaint I have is that the dog we have drools profusely when crated and anxious, after only two days the contact points on the bars all began to rust around the edging. This is disappointing but the overall function is fantastic! We have to provide this crate for a Saint Bernard in our rescue that gets heartworm treatment at the vet each month because he has severe crate anxiety/separation anxiety. He nearly broke down the door in the vet's kennels so we purchased this for his stay with the vet and he is over 160 pounds and this works great! It is a little small on height for what would normally be a 48 inch but it works and we are overall happy as it functions well and with the wheels it is easily moved to and from vet. Luckily it fits through our doors by about an inch or so on each side so moving it has not been an issue either.