The electric frother is most commonly used for two simple reasons. It is fast and consistent, so because of this you always get the milk froth that you love. In most cases, you first pour the milk into the frother and then let the machine do its work. Then try to pour the frothed milk into the coffee as quickly as possible for the best result. You can always put an extra layer of foam on your coffee with a spoon, then it will stay on top nicely, without mixing.
With the electric frother you can make all kinds of delicious coffees such as: cappuccino, caffé latte, flat white or a latte macchiato. With the milk frother you can use delicious, fresh milk for a latte macchiato, for example. You will need about 150 milliliters for that, feel free to try using more or less milk to see what tastes better to you.