The cooler is very well built and keeps cold over multiple days. I normally add drinks every couple of days and keep the ice topped off, and have always had plenty of ice left. The longest period has been 4 days, and we still had ice. This with days in upper 90s and low 100s.I did have issue to check durability: I had left the cooler on my open tailgate and started down the road. In my rear view I saw my 3 week old cooler rolling down the side of the road, as it had fallen when I took off. I retrieved my cooler, and did not find any damage, also it remained closed and did not spill all down the road. Great job.I also like the option of being able to drain any water, although it does come out quicker if you open the cooler to break the seal. I would definitely purchase again, and have already bought a smaller one for a coworker.I chose this cooler over a Yeti, and am not disappointed in the least. It performs as well, and is USA built.Great Cooler!