We have had this beautiful coach for 2 years and enjoyed every minute. The HR Ambassador was build by Monoco on a Roadmaster chassis providing a smooth comfortable ride. The pre def Cummins 8.3 mengine has plenty of pulling power. We have completed many improvements and replacements during our ownership of this coach like MCD dual roller shades throughout the coach including power front windshield and driver side, new power/charger inverter system, two new furnaces, two new heat pump air conditioners, new sidout topers and Michelin steering tires.