I was chosen to demo this cooler, probably because my review off the 55 quart was a little harsh. I am very happy to see that they addressed the issues. A new balloon seal that seals air tight ! I filled the cooler all the way with water, turned on it’s edge and opened the drain. I was amazed didn’t leak a drop of water I left it overnight to check no sign of leakage. I couldn’t test ice retention in winter so I filled it with hot water instead 110 degrees to be exact, after 8 days of sitting outside in teen digits the water temp only dropped to 101 . I don’t care what cooler it is that’s pretty impressive. I would also like to add this cooler actually fits a full size lock ! Can’t wait to take this to Glacier for our 12 day trip in July !