This is an excellent tea kettle with a copper bottom for efficient heat transfer, BUT after three or four months it developed a leak where the spout is joined to the body. When pouring, it leaves a good sized puddle around your cup. I believe it is guaranteed, but have tried in vain to find someone to honor it. Note to manufacturer: put a notch on the cap lifter to allow it to boil without the whistle, if desired.>>>>> UPDATE: 9/19/2011 I have no explanation, but the "dribbler" has stopped leaking water and is still performing well as far as an economical method of heating water. Keep the copper bottom shiny for top heat transfer. The stainless steel finish is still in excellent condition after almost 6 years of use and shines up as if brand new. Now give this 4 1/2 stars. I would buy another one if this one ever gives out. R.E.W.