Much, much quieter than our previous dishwasher which was a Kitchen Aid. Albeit the KitchenAid was purchased in 2001 but was very reliable & over the years required intermitent repairs due to a great amount of use. Our new Bosch cleans equally as well as the KitchenAid however the compartments and trays for utensils is not as convenient or as fast as loading the KitchenAid althought I beleive it does hold more cups, saucers, glasse and dishes. Overall I would rate it as an 4.5 on a scale of 5. Time will tell on how durable and effective it is over the coming years.