My old robot vacuum bit the dust after 4 years. I wanted a self emptying one this time. This vacuum does not disappoint so far! It's already had to empty itself once after cleaning 3 rooms. I didn't clean while I waited for my new one to arrive so I could see just how good it did. So far I am very happy with this purchase. It's not the quietest little thing but neither was my old one. I'm also really impressed with the mapping system. It got my house mapped out on the first try. We did hit a snag with the brush roller already though. I lose a ton of hair and it built up on the roller and caused it to send a warning to unwrap it. But that could be my fault as well since I didn't vacuum for 3 days. I'm hoping this one lasts just as long or longer than my other one.