Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Doesn't work, at all.
Review: I bought this piece of junk at Walmart for 10 bucks. It gave positives for 2 spots in the wall that had no stud, and negative for 2 spots that had a stud. Flipping a coin would be a more accurate method than this thing.
