This is a simple product to use, and does very well what it is supposed to do, namely cook eggs. The spout has a level indicator of water to fill depending on the number of eggs to be cooked (1-6) and to desired doneness (calf eggs, boiled or hard). It also has a puncher that can be used to break easily before the eggs.
Once all the water evaporated, a signal sounds.
After baking, a limestone deposit settles to the bottom of the tank. It takes away the vinegar water.
My purchase conquered my sister in law who decided to buy the same.