These were my favorite latte art cups, really easy to make good latte art due to the shape of the glass. Unfortunately, the durability of the glasses is quite poor. I bought 4 cups for my girlfriend and I, and so far 3 of them had their seal broken with an average usage of 1 year before that happens. From what I've noticed they have a cap of 100 washes in the dish washer before that happens, I just wish I knew that sooner. Overall, if you don't mind hand washing, this is the perfect latte art cu...