Grand Design's extra features and quality set this unit over and above the crowd. There are many features that aren't found on other manufacturers' trailers. The owners have taken meticulous care of this one, and they keep it right on their property. Here are some unique items to note: New mattress, new upgraded suspension which includes higher capacity axles and all new hubs. Factory structure and frame warranties are owner transferrable. Two new 12v batteries were installed this year.