Very good! It takes all the hair that was supposed to fall. The only downside is that it doesn't collect them on the comb but they fall on the floor. So it would be better for the dog to be groomed outside the house (on the balcony or in the yard). I was torn between this one and the furminator but I bought this one, as I learned that the furminator shaves the hair and there is also a risk of injuring the dog's skin.