What we tested
Remy sheds constantly and our black felt couches show every single hair. That was the hardest test. We also ran it across a regular fabric couch, a bed comforter, and some clothes.
What worked
It actually picks up the hair, rather than just pushing it around. The fur collects in a compartment you empty out. No sticky tape to peel and no replacement rolls to buy. For around $16, it is better long-term value than lint rollers by a lot.
What did not work
Nothing major. It is not instant. You need a few passes on heavy fur areas, and it works better with long strokes in one direction than going back and forth.
Remy's take
Remy's contribution was jumping back onto the clean couch immediately after we finished. That is basically a five-star review from a Lab.
Worth buying?
Yes. If you have a shedding dog and you are still buying lint roller refills, this is an easy upgrade. It costs about the same as a two-pack of refills and you never have to buy it again.