Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Works wonders!

As an owner of 3 Goldens we often find hairballs floating about the house. Both my wife and I work at the University so we regularly show up to work with dog hair stuck on our clothes and having our students point it out to us. We've used many grooming tools that have failed to remove the dead fur from our pets until we purchased the Furminator. I was quite amazed that the first time we used it we got almost a full garbage bag of fur from our three dogs that I know would have ended up turning into tumble weed in our home or being stuck onto our clothing. The dogs love it because it does not scratch them like the metal bristle brushes (in fact they use to run away every time we try to brush them). Now they gladly run up to us and lay down whenever we are holding the brush. This was a great invention and we highly recommend it!