Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: not worth the bucks
Review: The scanner cannot pierce 1" plaster walls with metal lathe to find studs - period! It may see AC but does not pin down the location to ensure clearing the cable. The main switch stopped working within 3 weeks of never finding a stud in these old walls. Still waiting for good technology.
