We are looking at these. Have concerns about the aluminum skin. My understanding, maybe faulty, the skin is bonded to aluminum wall studs. Have seen pictures on websites like RVTrader.com, RVT.com, etc where reflections of the ripples in the skin indicate the bonding is working and others where it appears the bond has at least partially failed. Sometimes it appears the skin has vertical waves i.e. bonding to studs is working. Sometimes horizontal waves suggesting bonding is working on horizontal members and not on vertical studs. Sometimes just random skin curves as if the bonding has let go randomly. Is this something to be concerned about? I don't mind the wavy look. I understand the skin expands and contracts with temperature each day. Looking for your experiences and advice.