This is my first robot vacuum. I had a Dyson V8 and it's very quiet compared to the Dyson V8. It is very easy to assemble. It has two front roller brushes to sweep dirt off corners and edges and picks it up very efficiently. He is very smart to find his own way home and he can dodge obstacles to get rid of the punches. I love it and it helps me save time and I can schedule cleaning every day. It's really a life-changing thing this season when my little furry friend visits :) By the way, I'm impressed with the battery life and you can use it as soon as you get it.