This was super easy to put together! Honestly when I saw all the pieces at first I was worried but it assembled quickly and easily! The motor is quiet, I can hear it if I’m listening for it but otherwise I don’t really notice it. I love the odor control insert for the drawer. I love the self cleaning feature and that my cats will always have clean litter now! The cats are still a little leery of it but they’ve used it a few times. I love the app that communicates with you about the cats using it and lets you know when it needs emptied too!