The unit has a smaller profile than most, so I thought that the engineers might have sacrificed noise suppression. I was wrong. This littleGXP50 (1/2 hp) is surprisingly quiet. We have a septic field and tank, so we don't put every scrape down our drains. But this Moen does the job better and quieter than the Insinkerator that replaced. It leaves more room under the kitchen sink (that's a plus AND a minus) and the lighter weaight made it easy to install. The snap ring that holds the mount to the bottom of the sink is a bear on EVERY disposal unit, so that's the only trick.