We had a successful transit also.  I was very pleased.  Although our run was much shorter than your from the left coast.  
I was still a doubting Thomas before our trip so I put all of our food items in my dry bag and then did 4 days in the freezer. The morning of our departure I put the dry bag in the cooler stuffed a few carry on items on top of it for the trip.  Nothing had even begun to de-thaw when we arrived.  Very impressed with this cooler.