It is all about insulation & colour of the cooler. The thicker the insulation, better. The whiter the cooler, the better.
Trouble is, people buy on appearance rather than what works. A dark colour cooler is a waste of money. Insulation takes up cubic space. That 55qt outer shell coleman cooler is the same size as the 40 qt double insulated one.
Also what you use for ice matters. Crushed ice is gone in no time at all. Good for the afternoon. Cubed ice may work overnight. For 2 night weekends on the boat we used a couple 1/2 gal containers frozen. By the seconf morning most of the ice had melted but the cold water allowed to leak out kept things cool.
Where a cooler is kept also makes a huge difference. In the sun or with peoples butts sitting on them melts ice fast.