Was skeptical but..
The brush didn't seem to be removing a huge amount of my hsukys hair but he quite enjoyed being brushed with this and although it doesn't take as much undercoat out as other brushes it does make the coar noticably shiner. Also used it on my cat and small dog and they both enjoyed it and it took lots of hair off them as their cost isn't as dense. Only issue with it is that it's not the most comfortable to hold, a grip would be nice.