This is a beautiful mug warmer, but I must return it because of what I see as either design flaws or defects. I like its sleek design, but what are likely considered safety features, I think are flaws:
Pro:
1.) It is sleek and attractive.
2.) The mug surface is flat and large, so it can accommodate mugs/cups of various sizes.
3.) Three temperature settings.
Con:
1.) You can't turn it on unless a mug or cup is sitting on the unit. I can't pre-heat the warmer while I make my tea unless I put an empty mug on it.
2.) It turns off every time I lift my mug to take a drink! Why????? This makes no sense to me. How can it maintain the temperature if it turns off every time I lift the mug? I see no good purpose for this feature.
3.) The feature that automatically turns it off after a period of time is a good safety feature; however, I discovered that if I leave my mug on it and the mug gets bumped or jostled even a little, the unit turns itself on again. This could be dangerous if I didn't realize it got bumped and the cup were empty.
I searched and searched for a mug warmer with a large flat surface and temperature settings, and I had hoped to love this one, but I am going to return it because of the cons I listed.