I gave it a five star rating because there are no more stars.....I received the product right on schedule.  I have never used a pressure cooker except for canning (actually a canner) when I was very young, and this pressure cooker by far exceeded my expectations. I have already used it for several recipes and am delighted with the results.  Far more important than the time savings, which is unbelievable, the food prepared in the pressure cooker is delicious. It truly makes a C00KER out of a NON-COOKER....  I am saving for an 8 quart so larger meals may be prepared.  Needless to say, I highly recommend.....