Fan of tea, it's perfect! It's two weeks since I use it and I'm totally satisfied White tea, green tea, black tea, blue tea or infusion is chosen temperature. Inertia is minimal if the kettle is filled more than half, if not consider putting 5-10 degree less to fall on the desired temperature. The audio signal is not so strong as indicated in certain critical (at least I wake up in the morning nobody, not even my baby)