OK, got a basic decision to make here. I am going to purchase a slide in camper and the first thing to decide is with or with out a slide out extension. What I am looking for is actual experiance with one, could be a camper, 5'er, or trailer. It sure seems to me they can leak under the right conditions and to a lesser extent get stuck for whatever reason. In a camper they make a large difference in interior space and on that basis only would be worth while. I haven't been able to talk to anyone that has gone thru a winter with one and the winters here can be very wet, a few years ago we had 105 days of measurable rain in a row. Brand names are not the game here but if you have a comment on one specific please pass it on. Thanks