I have an Ember - it works well enough if you start with hot coffee. I had hoped it would heat up cool coffee (at the time we were using a pretty big french pre

I have an Ember - it works well enough if you start with hot coffee. I had hoped it would heat up cool coffee (at the time we were using a pretty big french press, and wouldn't always drink it up before it cooled), but that's not what it does. I used to use the app, but like a lot of my "smart" appliances I found it's not much of a value add, so I just use the device as is.