I had been using this Attentiv kettle from Russell Hobbs for a few weeks. You can adjust the settings on the lcd display to heat the water to your desired temperature which is great and the wter heated in no time at all. The glass kettle also glows blue while boiling.
However after about 3 weeks of use i found the lid not holding its position open when filling it with water and became flimsy.  I also slightly dropped the kettle into a almost empty washing up bowl while filling it up with water  and the glass kettle smashed to pieces.  The glass was not in chunks as expected but shattered in hundreds of little pieces. Will not use a glass kettle again.