I was shocked at how much hotter my latte was in these cups, versus my old stoneware cups. That double wall does help hold in the heat. These cups are just the right size for use with my Nespresso machine and they seem to be well made. My new "go-to" cup for latte or cappuccino.

Light for my arthritic hands, beautiful, sturdier than they look. Doesn't really keep my coffee warm longer, but I love them for their beauty.

I ordered these cups last month (in January,) and I LOVE them! When you buy this, you get two small glass mugs individually and carefully-wrapped. They are easy to clean and I've had no problem in filling it with hot water. It's my first glass mug set and I've got to say, it's an elegant look to see be able to see your drink through the mug!Just be careful and don't be so casual while cleaning them. I broke my cups when I accidentally dashed them to my counter. Other than that, you won't regret

These little mugs are super cute, but they definitely seem like they'll be easy to break. The glass is very thin. However, drinking from one of these just gives me a good feeling - I feel so fancy! And the double-insulated design means that the cup is not hot to the touch and is pleasant to hold.

I like my coffee to stay hot. Although any cups will have a gradual cooling these help as much as possible to stay warmer longer. People complain about breaking them. You should be OK as long as you're careful. Some people could break a Sherman tank.