Had the kettle for one year now. Still boils, still glows, lid is still slowish to open, still makes fantastic tea/coffee, still looks spotlessly clean.
The cleanliness is part due to the fact that the little indicator on the top that tells you when to change the filter encourages you to a; change the filter and b; clean the kettle. Therefore 15mins later and after a scrub with some lemon juice, the kettle has absolutely no limescale inside it to date.
Surely that can benefit the taste and the environment as well, as the kettle doesn't have to work any harder to boil.
A good choice of kettle, and if you find 12 filters (for the price of 9) the whole year is taken care of.
Re-review June 2010
2 years on now, still 4 stars. Glowing facility is failing as some of the LEDs have blown, however the kettle still makes fantastic hot drinks, and the element is still spotlessly clean following a 10-15 mins monthly clean and filter change.