Satisfied Very handy when you are on the go and that there is no electric bottle warmer nearby Easy to use, just fold a small chip in the cover and it heats qqs in minutes Only problem for me to put the heating jacket has its basic state ie the liquid must be sterilized but not in the microwave and not in a water bath so hot plates so in my case the electric sterilizer! I wanted to sell it to save space, c is missed, I will have to keep a little longer. It adapts to all types of bottles