Garry, I was only half kidding; well, maybe not even half. The guy probably told you right, but those things do tend to leak and they often leak in places that you don't see or know about until a fair amount of damage is done. I have no idea what percentage of them leak, but I met one guy in our travels who had been parked in one place 4 or 5 months and he told me his slide-out wouldn't come it, so I went with him and showed him how corrosion, due to water, was his problem and we fixed it. One of my brothers has a 38' fifth-wheel with two slide-outs and he's replaced seals (of course it's about 10 years old and I'm not sure how often the seals were replaced). That brother used to be in the RV repair business and the other brother is currently in the RV repair business and slide-outs generate a lot of work for him. Of course, being a bit out of date, personally, I don't even know which system that Escaper has. I'd be inclined to guess hydraulic over electric, but don't know that for sure. Slide-outs do make for some nice living space, but I avoided them myself.