van life?

have any of you all ever lived in a bus/van and could answer some questions for me?? what are some pros/cons? how do you work? what’s the cost as opposed to say buying a small 2 bedroom house? my fiancé is in the military and we’re looking into it as an option when we get married, because of frequent movement/travel (I don’t want to have to pick up and move every year) it wouldn’t be forever, probably no longer than 4-5 years