IMHO they look great and are very solid. They were, however, an absolute bitch to put on. Four hands and a lift would make it a lot easier. They stick out from the sides enough that you will never get dings in the sides from shopping carts or car doors. On the other hand, if you're not careful...
2021 Jayco X213. 4500 pounds dry. Bunks in front, king-sized bed in rear slide. Bathroom and kitchen are accessible when slide is in. Access to bunk storage area through driver's side door for bike storage, etc.