I was a bit hesitant to spend so much on a kettle but this is really worth it! The keep warm function is so handy if you're the type of person to get distracted easily or drink multiple cups of tea in a row! I love the different temp settings too. I drink a lot of different types of tea, and it's a pain to worry about the water temp if you're doing it manually! The design of the kettle is very functional, I like the slow release lid and the handle is easy to grip, plus you can easily see how much water is left.
Probably not worth it just for instant coffee or whatever but if you're a big tea drinker then I highly recommend it!