As good as they say

Was surprised how much fur came out of my Sheltie. She's already well groomed but has excess fur on what we call her "pants" around the back side and tail. The tool really worked through this difficult area and pulled tons of fur out. That being said, she didn't like it and think it wasn't comfortable for her even while trying to be gentle. We took breaks and did a little at a time. Pulling fur out is still ripping fur out so you need to be careful. Not using the jaws of death either- the regular tool was extreme enough and didn't want to torture her.

Worked Perfectly Until it Broke.

This rake worked perfectly for de-matting our Goldendoodle until it cracked, rendering it nearly useless. Serious mattes deserve serious tools, I guess. We got what we paid for, which in this case was only about three months of use.

Terroble for undercoat, not effective at all

I bought this a long time ago after reading rave reviews. I dont have a dog with long hair but one with an undercoat and shedding is a huge issue everytime seasons change. I bought this expensive thing in the hope that if it works then money is not that much.
But it doesnt do much to clear the undercoat. I go on it maybe 10 times on my dog and only get a very very small amount of undercoat. MY HANDS DO A BETTER JOB THAN THIS! No kidding...
I am thinking of getting the FURminator at this point since this is just money down the drain, for my purpose atleast...

de-matting blades way too dull to be effective

The de-matting blades are very dull; I want a comb where the blades have rounded tips but a blade surface that will slice through the matt like butter--these blades require you to hack and saw and pull, and even then it ends up just pulling the hairs (of my shrieking, writhing dog) out by the root, rather than slicing through the matt and leaving the hairs still attached to my dog. If I wanted to just grab the matt and rip it out by the roots, I could use a comb for that purpose. This tool is essentially useless on my Havanese dog's coat.

comb broke off instantly, but still works great

the comb broke off about two minutes into being used on little dog. I still use it though. It works better than anything I've ever tried.