This. When my Cuisinart food processor bowl broke for the 2nd time, I went and got a RobotCoupe professional model. The cheese grater attachment I got for it says that you shouldn't run it for longer than 4 hours! at a time. Once you start going commercial, you will not look back. Pay more (if you buy new), work forever and if they do break, there are people/places you can get them serviced.