I've been using this in my work truck for about 3 weeks now. Overall it seems like it's very good quality. My truck runs all day (F550), and I never hear it running. Its very quiet. The only reason for 4 stars is that it doesnt hold temperature very long after it turns off. I will have one side set to zero, and when I shut the truck off overnight, with an outside temperature of 60ish, the inside temp will be in the upper 30's with a case of water mostly frozen in it. Without anything cold in it, it will lose most of the temperature. I did get the cover for it, but have not put it on yet. It seems very substantial, so hopefully that will help. I also have not set the battery protection to a lower setting, so that may help as well. Overall, I'm very satisfied for what I purchased it for, which is disaster recovery, usually at hurricanes in the south. I think I may have to purchase the battery for it to help get me through the night. I would recommend it, and will update this review if I figure it out.
