Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Sucks. Save Your Money.
Review: The rubber gasket does not stay on the glass. The minute the glass is wet, the rubber seal just slides right off the top. After I washed the glass and tried to use it, I literally coud not get the rubber to stay on - it would spring off the top of the glass all by itself. Utterly useless.
