I have a 25 foot Nomad Lite - I usually don't write too many reviews, but am pretty impressed with this cover, especially for the cost. I was able to install this cover by myself (I'm 67) in about 45 minutes. I started out in a little bit of cold but sunny weather, got the cover up on top of the trailer and the wind and heavy rain kicked up right about then. I was at the point that if I stopped I would probably find the cover down the road somewhere. Amazingly, the cover unfolded and went over the ends relatively easy, accomplishing much of the start from on top of the trailer and finished pulling down the sides from a ladder and then the rest of the way from the ground. Straps in the front and back cinched up easily and felt secure. Under-trailer straps were easy to install and tighten down during the storm tossing them beneath the unit. The cover definitely seemed waterproof and heavy-duty during installation. I ordered the 24-27 ft. model and there was a couple of feet extra at the back that cinched down nicely. Zip up doors on side are fairly wide and line up easily with both entry doors and rolled up fairly easy. The zippers feel sturdy and when not open are held in place by a Velcro strap. So far, I'm really pleased with the cost and build of this cover. Will see how it does over time.