There's alot of info re the Unity FXs online, so we won't duplicate that. We used this primarily for family vacations (a child can sleep in the back 'den') during the pandemic. We've kept this in excellent condition as I hate things that don't work. We've maintained the cab and chassis at Mercedes Benz dealerships, and the unit annually at La Mesa. We recently replaced the batteries, and went so far as to replace the rubber gaskets around the storage areas. We've stored it indoors when we could. It's never been stored in cold weather. We've had alot of fun with it as a family, and hope you will too. We're selling it because my in-laws recently passed away and we bought their condo in Florida, so we'll be using this less. It's really an ingenious machine. Check-out LTV videos, and our pictures.