It Works, and the Cat Loves It
I purchased the Feline model at a local street fair after taking a good look at the blades and comparing them with the tined groomer I was *trying* to use on my cat. She was happy to be groomed with the Zoom Groom (which I also recommend highly) but never liked slickers or tined combs. I tried the new groomer out on the kitty as soon as I got home. Lo and behold, the purr machine started and the cat actually turned on the other side so that I could brush both. The other, inferior product was consigned to the recylcling bin. We now have daily Furminator brushing with the cat actually jumping on her cat tree and meowing for a session. My short haired cat is producing small, yet significant amounts of undercoat even after daily brushings. This tool really does work and she enjoys the experience, which makes it better for both of us. And her coat is shiny and beautiful!

FURminator Forever
Previous good reviews were one reason we purchased the item. And here is one more good review. The FURminator (for cats)actually surpassed our expectations. I didn't think they could have that much underfur. You do need to be a little gentle, compared to some other similar products, but that is just common sense. It does not reduce my overall high satisfaction. The price was reasonable, and about $10 cheaper from Amazon, plus we got free shipping. All in all, a fine product.

Holy Hair Catman!!!
I never knew this much hair could come off of my cats... great product!!

Works as promised. Now get out the vacuum.
Just wanted to join in the feedback about this de-shedding tool. It works great! Comes with a plastic protector for the teeth (the teeth are not guaranteed against breaking as stated on the instruction sheet). Just don't overstroke/overcomb your pets with this (you could give them brush burns/sore areas, etc.). Make sure your pets don't have sores and this thing does the job. I have three cats and one of them loves this comb. The other could take it or leave it and the other thinks it's evil. I comb them a bit at a time, twice a day for now, just to reduce the shedding on the microfiber sofa. Please don't think you can entirely strip your pet of any and all undercoat - that isn't possible and that would be kind of painful for the pet! It does help a lot on the shedding around the house. I did try to catch all the fur as I was combing the first time I used it but it really is easier just to comb the cats (no dogs here, sorry) on the rug and vacuum later. The tool definitely has a bit of heft. Yes, it's overpriced, just like most pet products, but this should last several years.

Great tool
This comb rakes out the undercoat and generally makes your cats shed less, and works pretty much exactly as advertised. In a word of advice, make sure to either use the FURminator outside or when you're going to vacuum anyway since it produces a lot of hair, and if it's not cleaned up quickly, cats can become interested in it, which leads to hairballs. I've noticed that it's most efficient when used after my cats have dried out from a bath.

Despite what other reviews may indicate, if your cat doesn't like being groomed with other brushes, they're probably not going to like being groomed with this one. Also, it may be a good idea to wear glasses or something else to keep the fur out of your eyes since small bits of it will invariably float up around you. But if you can deal with the minor annoyances, you'll be much better off for using this.