I had an Engel 45 for a few years. It was great at keeping things either frozen or nice and cold. Used very little power and had a nice slide mount for it. What I wished I had at the end was a fridge/freezer, the ability to have things both frozen and cold is really nice if you spend a lot of time outdoors. P.S. What happened to the van build you were going to do? I like the new build so no worries.