Instruct: Classify the given Amazon review as either positive or negative.
Query: Nice heavy Libbey glasses made in the good ol' US of A

There was a slight mis understanding at first but, as usual, Amazon straightened it right out. I really didn't know a glass from a mug but my neighbor's were impressed and the glasses were made in USA. Very well made and attractive-- I am very very pleased. Once again fast delivery and all glassware was intact. You can't beat Amazon for customer service and quality and buying American is the way to go (when we have that rare chance~). I even ordered an additional set and now I know the difference between regular glasses and mugs (bought them too!). The 14 oz and the 12 oz are very close but I preffer the larger ones that hold a full can of soda or beer (or whatever)Amazon's free shipping (on select items) and their fast delivery rules! Great price too. Thank you Amazon!