Love this kettle. I use it to heat water for tea, cooking, preparing food for hummingbirds, anything I would have used a stove top kettle for. The least efficient ways to boil water are on a stove (gas or electric). Most efficient are electric kettles and induction heaters. The last are limited to pots that a magnet grabs. When cooking soups, stews, chili, etc. I often need to add more water. I bring the water to a boil in this kettle to prevent cooling the pot. Cold water stops the cooking for a while. The quality is good, easy to pour, comfortable handle.It has an auto turn-off when the water is boiling fast. Twice I forgot water, and when I turned it on it immediately shut off before the elements got very hot. Minimum amount of water is about 12 ounces - required to prevent the elements from heating above the water. The maximum fillis 32 oz (1 liter), more the boiling water might splash out of the spout.I highly recommend this electric kettle to anyone who wants a simple, easy to use, reliable kettle to boil water in. And who wants to boil water much more energy efficiently stove tip kettles. Just don't cook food in it as it would be very hard to clean out, and food would get caked up on the heating elements. For the rare times I want a specific temperature I use an instant read thermometer that reaches into the water and lets me attain a desired water temperature.