Which temperature setting do I use for which drink?
The lower end of the preset range suits delicate white and green teas, where full-boiling water extracts bitter compounds too fast and drives off the aromatic ones. The middle settings suit oolong tea. French press coffee gets its own preset just under the boil, and the boil setting itself suits black tea, herbal infusions, cocoa, oatmeal and noodles. If a tea you have always found bitter is a green or white variety, it has very likely been brewed too hot in the past, and this kettle lets you test that in an afternoon.
Is the temperature control worth paying extra for?
It depends entirely on what you drink. If you drink green, white or oolong tea, or make French press coffee, the presets materially change what ends up in the cup, and a kettle that gets it right without thought is worth real money over years of daily use. If you drink black tea, builder's tea, instant coffee or hot chocolate, all of which want water at or near the boil, you are paying for a control you will likely never move off its highest setting, and a plain kettle does the identical job for less.
Why does the temperature seem inaccurate after a few months?
Almost certainly limescale, and on this kettle it matters more than on a plain one. Every boil deposits minerals onto the element, and scale insulates it, interfering with accurate temperature sensing, which is the entire feature you paid for. Descale with white vinegar or citric acid whenever deposit is visible, and use filtered water if your supply is hard. Treat descaling here as calibration rather than housekeeping.
Can I lift it mid-cycle to pour a cup without disrupting the programme?
Yes, briefly. The memory feature lets the kettle come off its base without switching off or losing its place in the temperature cycle, useful the moment you want a first cup while the kettle is still holding the rest at temperature for a second or third. Pour promptly and return it to the base rather than leaving it off for long.
Does the keep-warm function reheat the water, or just hold it?
It holds the temperature you selected rather than reheating from scratch. The 30-minute keep-warm preserves whatever preset you chose, so a second cup twenty minutes after the first is still brewed at the same temperature rather than whatever the water has naturally cooled to. A plain kettle that simply switches off begins cooling immediately, which would undo the point of a precise preset by your second cup.
What does the three-year warranty actually cover?
Manufacturing defects and the mechanism, in the ordinary sense typical of a limited warranty, not damage, misuse, or the effects of limescale left unaddressed. It is a meaningful commitment for the category regardless, since a one-year term is far more typical for a kettle, and a longer term is one of the few honest signals a manufacturer gives about expected lifespan.