The first quality of this bottle warmer, and most important to me is that it heats bottles particularly quickly. (Maximum 2 minutes is enough when power is on) Another advantage, it is really wide and is suitable to as many bottles. Can be used subsequently to heat small pots. It stops automatically. A final advantage that has its limits, however: the cigarette lighter adapter. Very handy even if the heating time is really more important (more than 6 minutes advertised).
Other limitations, it will calcify rapidly and not very easy to clean. The amount of water indicator is not really reliable, we must quickly make their own marks (depending on the desired temperature). And finally, it takes 15 minutes for it to cool for reuse (hence impractical for twins or heating and the little pot and bottle).