Good solid product with large capacity. Definitely need two strong people to carry when full. Recommend going to Igloo website which explains the ice test and how to clean etc. The product didn't since with any instructions but website is helpful.
have used this many times to transport frozen goods for 50 hours and it works, I freeze down 12 x 0.5 litre bottles of water (no need for freezer packs) and lay them over the top of your frozen food shut the lid and hey presto, still frozen solid when you reach your destination and your food is perfect