Purchased the 52 qt, with wheel, last year. Surprised after first use, when all ice melted overnight in 70F. Then I tried the various tests I had seen on YouTube videos, where the ice lasts 5 or 6 days, by loding the cooler with cans and packed with one, then two, then three bags of ice. It barely makes it to the next day. I’ve seen another one work better, but mine is not as advertised. I can see a poor cooler with a little worse ice retention quality, but spending over $300 with the qualities of a $10 styrofoam cooler is outrageous. I gave it a year, and the performance is disgraceful. Buy a YETI, or save your money, and buy a Thermos.