We are quite happy with the Zwilling Enginigy 1.5 Lt Kettle. I would have given 4.5 out of 5 but this option wasn't available. It boils the water quickly, it is elegant, and it delivers what was promised (e.g. wouldn't burn yourself when filling it again). Also a perk, you can see the temperature of the water in the kettle. As most products, there are some opportunities for improvement.
                    1. In Canada, it would be great to have C degrees rather than F degrees.
                    2. Maybe on the next iteration, an indicator of how much water in it can be included. One can easily identify when you pick it up but wouldn't it be nice to have small indicator showing the estimate amount of water in it.