I received a grey Ember mug for Christmas.  I love it!  I don't drink coffee / tea fast enough and was always reheating in the microwave.  I love the convenience so much I ordered a second charging coaster so I can enjoy my hot beverages in another room without unplugging / plugging and moving it around.  I choose the rose gold color which is beautiful.  
Now...  do I splurge on myself and get the rose gold mug...  :)