Some of the older Coleman or Fleetwood popups had a roof problem. The roof would crack due to the material that it's made of. Not sure how old you are looking for, but the high wall popups look really nice. Use don't have to put your sink down. You only have to put the walls down from the bathroom area. There are a couple with a slide/bump out like the Fleetwood Niagara. It provides a little more living space. King beds are really nice as there is plenty of room for sleeping and room for storage with plastic bins. We started out with a popup and thoroughly enjoyed it for 7 years.