Bought (poor heating), despite some critical reviews the foot warmer. Unpacked the thing, connected, set to stage three and feet clean. Yes, the result was very disappointing. Relatively long warm-up time and also only slightly warming the feet. In addition, the heat only comes from above, not from below. So first the fluffy, white insert out and lo and behold, there is still a 3cm thick foam mat under the fluffy use. Thus, of course, no more heat coming from below. So use without foam back inside and ... comforting, fast heating from above and from below.