I have had a great deal of problems with the residential refrigerator in my Landmark. The ice maker was not attached properly at the factory and had a slow leak causing extensive damage. The water line to refrigerator is located outside of the RV and will freeze even when the coach is in use. The line leaked at a connector on the frame and dripped into the "underbelly" of the coach causing extensive damage and repair. The battery life to operate the refrigerator is not very long when not connected to power. I believe that Heartland needs to make a lot of improvements with this system if it continues installing residential refrigerators in its RV's. I would not buy another unit with this set-up unless major improvements were made. I wish that I had purchased a unit with non-residential refrigerator.