I have a Yeti Tundra 45 my wife gave me for our last anniversary, and I've been very happy with it! It does keep stuff cold longer than the Igloo and Coleman coolers I'd been using for years. My biggest gripe with them, however, is not the length of time they kept stuff cold as much as they simply wouldn't hold up to hard use for very long before either the shell would crack or the hinges and or latches would break... or all the above. I haven't had the Yeti for long, but it is obviously better constructed than the coolers you can get at Wal-Mart.