This is a new microwave for me. I bought it because my old microwave of 32 years finally quit working. I was not looking forward to getting a NEW MICROWAVE because my old one was huge and easy to use. Had dial knots and was simple to use. The new models all have the digital numbers that you have use to operate them. The knobs were easy for kids to use. This was the first one I had ever seen that even come close to what I had. It's big enough to defrost a 25 lb.. ham or turkey. So far so good...