Purchased in 2022 and used for about three and a half years. It works without any problems and has not broken down. The left burner has only been used about twice. Instruction manual included. I have cleaned it as much as possible, but since it has been used for about three and a half years, there are some small stains that I couldn't remove. Compared to a brand new, unused item, there is some feeling of use, so please purchase only if you don't mind. The surface of the left operation button (around the timer) is slightly raised (see image 7). The legs will be removed and packed for shipping.