Ours....fixed a minor leak our first year, (last year). We bought in on consignment, a couple had it, hardly used it. Outdoor shower needs to be replaced. Some delamination occuring on the outside, which the dealer has documented, and if and when we were to trade, we wouldn't lose any resale/trade value as a result. Doing what I can to take care of it, but it's never ending, like a house. I've noticed recently, the underside, where the hitch is, is sagging a little bit. You can push up on it, and fortunately I don't hear any water sloshing type noise, so I'm thinking whatever or however it was adhered to the underside, has come loose. I'm wondering if I can put screws into it, some sort of seal-screw??? Have you heard of that area sagging?