I love this ember mug! My coworkers bought me one for work many many years ago and it has still been great. Keeps any drink warm, or hot if that's what you like!! The temperature can be fine tuned using the app which works flawlessly for me. Sometimes work gets so busy it's terrible coming back to a cold cup of coffee, with the ember mug it'll never happen again! Perfect because only the inside gets hot so you never worry about burning your hand! Super easy to clean since it's sink and dish washer safe.

First off, why even make a 10 oz. It's really 8 since you need some room at the top to not spill. But even a larger size wouldn't fix the fact that it just doesn't stay warm long enough. I wanted to be able charge overnight and enjoy coffee all morning, but it doesn't work that way. If you want more than 90mins you need to keep it on the charger (defeats the purpose). If you want to extend the battery you will need to constantly turn on and off in the app (often forgotten because you're WORKING). And having to use an app just to work the cup seems a little dystopia. At the end of the day if you want constantly hot get a flat bottom mug and a a cheap 15 dollar Mr. Coffee warming plate. If you need to move it around the house just put it in a travel mug.

I love this mug in cold weather and the reliability is amazing. The material is superior quality and the capacity is great for regular coffee drinkers. I can’t imagine without it.