I purchased my JP 40 cooler a couple months back as my car cooler had died on me and I could not be more happy with this purchase. My first trip was to Ohio for one week where I traveled with food necessary and was able to keep everything at 35° which I found was perfect for what I needed on the way home. However, I was returning with deer meat that I had hunted and was able to keep everything frozen solid at 0° inside the cooler for my nine hour trip. I pair the cooler with a jackery which are a full charge. Will keep the cooler running on Eco mode for 2 1/2 days. Today I’m driving 12 hours to North Carolina and will be hunting in Virginia later this week where the ice cold cooler JP 40 will be used from everything to keeping food in it. Safe temperature zone and also on the return home keeping the meat frozen. If you know that you’re going on longer trips, perhaps a bigger cooler would be more beneficial, but for what I am doing, I couldn’t be happier.