This kettle heats water quickly, and provides an audible beep when it is done, which is sufficient to be heard from another room without being overly obtrusive.
When set to a particular temperature, it initially overshoots the target a bit, then stabilizes. The hour-long temperature hold (not available when targetting a full boil) is useful and works well. It would be nice to have a bit more granular control for the temperature or simply different set points. Many coffees and teas target 195 or 205 degrees, but adjustments are performed in tens, so it is only possible to do 190 or 200. This is mitigated by the aforementioned tendency to overshoot the target. Additionally, the display shows a live display of the current temperature, so it is possible to program the kettle to reach e.g. 190, then bump up the target and watch the display to stop when it reaches 195 (usually less than a minute later).
A minor annoyance is that the kettle beeps five times one hour after it is turned on, even if it turned off automatically upon reaching a boil, or was manually turned off after reaching a pre-set temperature. It also beeps whenever it is lifted from or returned to its base.
In addition to the removable tea infuser, there is a removable fine mesh filter which fits across the pouring spout. This has the side effect of substantially slowing down the speed at which water pours. Whether that is good or bad is a matter of opinion.
As a bonus, the clear sides and blue light from the bottom look very cool as the water reaches a boil.