keeps my coffee the perfect temp!

Keeps it warm (not hot, but definitely a solid temp)

Keeps coffee/tea at perfect temp, high warm but not too hot

Keeps my coffee at a perfect temp...not too hot and doesn't get cool.

Did not heat up coffee to good temp.

would like it a tad bit warmer but the temp is pretty good!

It keeps my coffee in perfect temp for as long as I want

This keeps your coffee or tea the perfect temp

Bought this as a gift and he loves it, always the perfect temp.

HOT-hot beverage will cool to the drinkable-hot temp and cool beverage does warm up to that temp, takes about 20-30 minutes

They work great and look great and keep coffee at a great drinkable temp,

This coffee warmer does exactly what it's supposed to: it keeps your coffee/ tea a comfortable drinking temp

There was some improvement in temp control when I used a mug with a totally flat bottom, but any lip or concave shape on the bottom of your mug will not allow this warmer to effectively control the temp.

Keeps it warm (not hot, but definitely a solid temp)