Has anyone used a Yeti and, if so, would you mind offering some feedback? Our Denali had a very large refrigerator so when we were going to be away from civilization for a couple of weeks it was never a concern; we had ample storage space. The Reflection refrigerator is smaller so we are trying to come up with a solution for extra storage of milk, some perishables. We seem to remember hearing that Yeti's are a great product for keeping things cold for longer period of time but,goodness,they are pricey. Would really be interested in hearing what others have yo say. Thanks-Suzi & Ken