I love this machine. I will give it a 5 star rating once it runs well for a couple years. For now I'm giving it a 4 as it does everything it's meant to do. It is lightweight, powerful, cordless, versatile and easy, so easy to use. Favourite features are the non-tangling head for long hair and the easy to dump dust chamber. I have three teens with long hair and three pets and this vacuum is doing wonders for keeping my house clean. I've had the machine for 3 weeks so far.