Bought the cooler in early fall 2018, and it was used a couple of times with iffy results on ice retention. Fast forward to this spring, two trips involving minimal pre-cooling, few in/out of the the cooler (and sitting overnight in 60 deg temps) resulted in ice loss similar to what any typical Igloo or Coleman cooler would do. Last test was tossing a 10lb bag of ice in the chilled cooler...50% gone overnight. So I have a heavy, tough cooler that doesn't deliver the extended ice usage promised....