Most of our camping has been long weekends with an occasional week long trip, to various types of sites. We do most of our cooking out doors but I like the option of using the gas oven, especially on rainy days, or when boondocking.
We have used it to make pizza, corn bread, lasagna and reheat just about everything from spaghetti sauce to meat loaf to Jalapeno poppers.
We added a flat pizza stone to the very bottom of the oven, which eliminated the burned bottom problem, along with a small oven thermometer.. Our oven really holds the temperature very well.
I guess it just depends on what you plan to cook and how well your oven works..