After four days, there is no ice, but the beer is still cold in both. Despite the exorbitant cost, why would you let a case of ice-cold beer sit in a cooler for 4 days?
If you are an ardent cooler aficionado, knock yourself out. It absolutely crushed my soul to let ice-cold beer sit for days without my personal attention. Both coolers are outstanding and durable, but I would not pay good money on a cooler that I could spend on beer. That's like buying Crown Royal. If it's free-take it.