This is a replacement for our first TOA-65. It had a grinding noise in the top of the unit at 4 months. Replaced under warranty with no problems. We love all the functionality, and it has become our go to appliance this past summer as we didn't heat the house up as much. Read the guide and consider keeping it handy as you will need the temps and times. Its a little tricky converting heating temps on frozen food to this, but follow the Cuisinart guide for success.