Many of us have used reflector ovens while camping and have had great experiences with them.
You have to have the proper fire, set the oven up close enough, and experiment with many recipes. 
The first experience I had using a reflector oven was on one of my first Boy Scout campouts at Lion’s Den Boy Scout Camp off Lion’s Den Road in Jefferson County, Mo.
The Boy Scout camp is now closed but there are many great memories, especially the smell of the trading post that had just been built.
The building was made of western cedar wood and was located across from the spring on the property, but back to the reflector oven.
One night the Scouts had a blazing fire and I remember the reflector oven being set up in front of it with brownies being baked in front of the fire.
