I rate this 3 of 5. I am a truck driver. I use this product, and it works good. But it has 2 problems. 1st. The 12V plug in melts. Not only for this. I bought roadpro slow cooker too but 12V plug in has been melted only after using twice and returned products in Flying J. 2nd. I don't like aluminum liner. I will never buy this again.