Update, I bought the cooler before vacation last week. It was sitting in my 80°F+ garage for a few days with a case of small gatorades in it, no ice or anything, just waiting till I left to pack it. With the case of gatorades in there being 80°+, I dumped all the ice from my freezers ice maker bucket into it (less than a small bag from the gas station worth). It was packed around 5pm friday, and packed with as many cold beers as would fit on top at around 8pm. We left for Tennessee around 2 am Saturday. When we got to our destination at 1 o'clock, there was still some ice left but not much. We unloaded all the beers and most of the gatorade. By the next day all the ice had melted but the remaining drinks were still cold. It was sitting in an air conditioned house since 1pm saturday. I think if I had pre-cooled the contents and put more ice in, it would have lasted much longer, but this was just a test to see how it fared. Since we were in a house with a fridge/freezer, it didn't really matter. I'm still happy with the performance of the cooler for the price, though if I had paid more for it I would not be satisfied. For a weekend trip, this would be a good option if packed correctly with pre-cooled drinks/cooler, and a lot of ice.
Another update: I let my cooler sit in the air conditioned house before loading it up on saturday around 4. Put in 6 beer bottles, 6 of my girlfriends seltzer waters (both refrigerated prior), then dumped the same amount of ice as the last time on top. I poured some salt on the ice and put in two lunch box sized ice packs and closed it up. In and out for drink all night, and I put in a 12 pack of Coors light around 11 from the gas station, and in and out of the cooler until 2ish. After my girlfriend drove us home, I forgot about the cooler in the back and the next day we went grocery shopping at 5 and the cooler was in the hot car all day. After the store, there was still a bunch of solid ice left and all the drinks were ice cold, and it kept the food cold while we went into the next store. I still haven't unloaded the beers and it still had the same amount of ice as yesterday, I'm pretty impressed! Sorry to hijack the thread and make it about a cooler review, but just wanted to give my input here!