Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Absolutely worthless on Shiba Inu

My Shiba Inu's undercoat is in dire need of a good brush (lost the last good rake we had). I saw the glowing reviews and low price tag on this one, so I thought I'd give it a try. I followed the directions, tried not following the directions, and in the end, I got just a few strands (literally between 0 and 3) of hair for each long stroke. If I just pinch the dogs coat and pull, I get a lot more undercoat.As far as the build quality goes, however, it is clearly a well made rake...a big surprise for the price. That is the only thing that keeps this review from being 1 star. Even if it didn't do the job for me, the build quality is quite good and worth a star in itself, even though it didn't work one bit for my dog.This might be a good rake for some breeds, but it's a waste of money on a Shiba Inu.