Don't do it! I purchased on 5/8 for $60.97 and used the product indoors with A/C, outside temp averaged 85-90 degrees. After 3-3.5 hours, water leaked out from the chest onto my wood floors. There was no mention of needing a mat, as online they have people using in on countertops and in the back of their vehicles.
On 5/27/18 I inquired about a refund and got no response. The return policy online and on the commercial states I get a 60-day money back guarantee (but they do not pay shipping to return the product). I paid $55 to return their badly deficient product back to them! I will get $4 back, not my $60.97, so stop lying to consumers, "full refund" needs to mean full refund! The ambiguous meaning of "money back guarantee" should be "60-day SOME money back guarantee."
I do NOT recommend using this product, use a traditional ice chest, speaking from personal experience. I've seen better from homemade structures.
Bottom Line: No, I would not recommend this to a friend