Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: All but useless
Review: Ultimately, I always just have to use my hand, since this can't get a good grip and the spaces are too tight. Most filters actually have a smaller nub on the end that you could use a regular wrench on in a pinch, but I've never had this aid me in getting the filter removed.
