We had them on both our Cyclone Toy haulers with 4 slides. Highly recommend for all the above posted reasons. We also have them on our Motorhome. Only issue we had with one of the toy haulers, was a large crosswind while crossing the bay at Horsefall actually unfolded one of the slide awnings and started flapping in the wind. Tension adjustments are important to check even when the dealer installs them!