I own it since about 1 week and had it been used every day, since I often get cold feet lately, what bothers me very. After I switch the foot warmer it takes a few minutes until it reaches a comfortable temperature, but whether other foot warmers in this regard do better, I doubt it. Therefore, I put my feet only about 5 minutes after turning in the foot warmer, that is, when a pleasantly warm temperature has been reached and it's just a great feeling cold feet as soon get rid of, because previously it was never so easy to get rid of the cold , Not only the warmth of this pleasant feeling, but also the inner lining, which provides a zusäztliche cosiness.
All in all I'm very happy because the foot warmer is doing what he should and I can say goodbye from now from the cold feet!