I've had 5 (I think) of these kettles! 
They are a good size and the variable temperature controls and quick function is excellent.
I little pricey but the kettle is study and looks to be well made.
The reason for the numerous exchanges is due to the electric on/off switch that has not worked properly over time, not starting on pressing the on button even though it pings on pressing the button or it cuts out during operation.
We like the kettle a lot hence not replacing with cheaper/more reliable kettle and replacing during the warranty.
A fabulous design with a poor electrical persistent fault.