"The rating would be excellent, but Tyler must not have used Yukon potatoes...they result in chips that are either greasy or close to being burnt (see other reviews). Substitute Russets and the problem is solved. If you use the Parmesan, use less salt. Be sure to use a cooking thermometer. My Presto reads wrong and I have to set it at 400 to get 360 to 375. I have cooked this many times for friends and get rave reviews. One note of caution, do not cook more than you will eat in several hours. The chips get greasy and soft overnight.