Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Inexpensive but not super efficient

I bought this because my cats have started shedding copious amounts of cat fur with the summer weather. I saw an ad for a more expensive version of this, but thought I'd try this out first to see how well it works. The other product shows piles of cat hair next to a de-furred cat. My cats are short-haired cats and this didn't work as well with them--I had to repeatedly go over the same area, and I had to frequently remove the accumulated cat hair from the comb. My regular cat brush works just as well, if not better, so I'll probably just stick with that. This wasn't expensive, so it wasn't a waste of money; I just probably wouldn't buy it again.