Basically that! Fed up of our kettles lasting 11 months, we live in hard water area, despite me descaling regularly , I came across a couple of these kettles one is 1.5 litres the other 1.7 both with variable heat settings, there’s fiver difference between the two, one has buttons the other a slider, Can anyone give me advise if they have bought and what they think, (don’t want any other kettle) very much appreciated