The drive to magnetic is quiet and enough to prepare a wonderful, creamy foam. The foam is super stiff, but the sugar will remain forever on it are .... which is always a good indication of perfect foam in my opinion. One serving is enough for a large latte glass or 2 cappuccinos. Then you have the cup and the spiral are cleaned to prepare for new foam. That does not make it, the second gear is not perfect, but for which the unit can not then. Best cold rinse, then the cup is already cool enough for the second round.
For two people ideal if you have guests more frequently, then I would recommend another device with more capacity. We use the device in combination with a Dolce Gusto ... just an espresso and you're done! YUMMY !!!!!!