Bought this for my wife as a present and I'm pretty sure she loves it more than me now. It's incredibly easy to set up and control. Takes a bit of fiddling to find your perfect setting but once you find it, BOOM! perfect drink temp forever.

Just slap the coaster down on your desk, plug it in, install the app, and you're good to go. If you keep the mug on the coaster you don't have to worry about battery life at all. But if you just HAVE to walk around with your mug, it'll keep your drinks warm for a couple hours (less at higher temp settings).

I originally bought one of these for my wife as a gift. I didn't really think it would be as great as it is. My wife was always dumping cold coffee and refilling, so this seemed like a nice gift idea. Well, she LOVED it and she uses it every day. She loved it so much, she bought one for home and one for at work. Then I tried it and I fell in love with it. So now I bought one for me too. It really is the best thing to happen to a coffee mug since the coffee mug was invented. And the app keeps getting better and better!

I'm loving my Ember mug - it uses an app for setting the holding temp exactly where I want it (140° for me is perfect).
It feels stunningly luxurious to have my coffee perfectly hot with every sip. Knowing it won't be cold even after letting it sit for lots of minutes without drinking any is sparking joy!
When I'm finished drinking coffe for the day, I'm keeping the base plugged in and on the table by my chair. A quick hand-wash then setting the mug on its base is all it takes and it's waiting and ready for tomorrow. It's "sleeping" and is activated by pouring coffee in. No turning on or off. I'm worthy of this big improvement in (what is for me) an important daily routine.

So it works as advertised. I ordered this for my office at my job. I tend to pout tea but then forget about sometimes or i get busy moving across the buidling that i can't carry my mug with me and thats why I ordered this . I can keep it at my office and it will keep the drink hot.

It keeps it hot for about an hour but the charger is really close to me so I can charge if the battery dies.

Set up is easy, turn bluetooth on , download the app and follow the instructions. Anything after that is pain if you're on andriod.

After my first use, i wanted to adjust temperature to see which i like the most, it wont reconnect and I had to the set up all over again. A day later same thing happened. Next day it connected but says no drink in the mug but I actually poured the tea . Had to do manual reset on the mug and app to reconnect. It kept connecting like it should for the next couple days but then the issue where i couldn't connect except through the set up method came back. It is just horrible to have to set up every time or pray that the app actually recognize the mug and not having to set up every time.

I have no idea about the app on IOS but on google play, the reviews share the same issues which is actually connecting to the mug.

If you don't care about the app and want to set the temperature one time and never use the app again then this is a 5/5 stars product.

Bought as a gift for FIL and he loves it! He normally microwaves his coffee/tea throughout the day but now he doesn't need to! It was easy enough for him to setup himself and keeps his drinks hot all day. Great gift!