As a water cup no leaking through first 3 minutes. I use it as a paper funnel cutting off the ends. Doesn't hold up to some chemicals but that's to be expected. It's not wax coated so for a budget paper cup 3 minutes holding water without leaking is very good. 5 stars! Sides of the cup started getting soft after 3 minutes filled with water at room temp, water slowly absorbing into the paper. Would not recommend it for hot water but it's definitely not being marketed for that. I think it's a snow cone cup. For cold water it holds up for a while before the outside gets wet. Very good product. I use it mostly as a disposable funnel cutting off the ends. Ultra great value.