Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Best Espresso Shot Glasses Ever

These espresso shot glasses are excellent. The quality is good and they keep the espresso hot and your fingers cool. Every guest that I have served in these shot glasses comments how much they like them. They let you see the espresso as it comes out of the machine. If you are making quality espresso you might as well see it. They are well made and I highly recommend them.