I heard that Atwood has the factory temp set higher to ensure hot water for a longer period. The only concern I have is that one of my grandchildren could scald themselves if they forgot to mix the hot with cold. I installed an adjustable thermostat for my peace of mind.
2010 Silverado 5.3 3.73 EC Superchip, AEM Air Intake
2013 Jayflight 26RLS
2 Fur daughters
....and empty pockets