So I'm not sure about the "ultra-quiet" part, don't expect it to be quiet as a mouse, but it is noticeably quieter than other garbage disposals I've heard. This works great for me because I live in a multi-unit complex and my kitchen is near the front door of my home, so when this thing is going, it doesn't create a ruckus! I would recommend it if you have a similar living situation. It works well and the setup was straightforward.