We've had this kettle over a year. We love the look of it and the fact that it heats water quickly and retains the heat a long time. However, it can be DANGEROUS on a gas stove. If you look at the design, you'll see why this happens -- if you put too much water in it, it won't whistle, it will instead boil over without warning; the water will boil out through the spout, run down the side, then under the kettle and douse the flame underneath. So the FLAME IS OUT but the GAS IS ON. This has happened several times. If you don't overfill it (above the spout), it's perfectly fine, but it's hard to keep reminding other people like guests and family. We've decided to replace it with a kettle that has a higher spout and a flat bottom.