I have to be honest that i doubted that if a robot vacuum would've work. But i'm amazed by how much dust and hair it got after a week. (And i consider myself keep up with the cleaning quite well) The app is very easy to use. If you don't have your phone with you, using the buttons on the machine itself is very convenient as well. Of course our little one loved it! She calls it Robbie and directs it where to go and not to mess with her art work on the floor. The only downside is that it is a little bit loud when using it, but i start to get used to the noise so i don't mind it too much now. Overall, strongly recommended!