I thought I had done my research but we have had our 55qt cooler for 9 months and have not had any good experiences. Started out using it to just hold water bottles for a family gathering, it was fall, so it was cooler out, but ice was gone the next day. Thought maybe we didnt pre-cool it enough. Since then we have brought it camping with us 4 times this spring and summer, pre-cooled it every time, and still ice was gone within 2 days. My 20 year old colman cooler did better than that. Overall pretty upset that after spending over $100.00 on a "good" cooler to have it be not any better then what I already had.