I wish I had bought one of these kettles years ago when it first came on sale. I think it was around £20 - £30. The Alessi is constructed from quality materials, brazed, welded and solidly bolted or pinned together. I have worn out many cheaper S/S kettles over the years, the handles detach,the whistles fall apart, corrosion starts round the rolled (not welded) base edge and they eventually leak. There is usually no thick composite heat transfer base in these kettles, so the efficiency is poor. A good chunk of the Alessi weight is due to the thick heat conducting bottom and of course the captive, hinged, solid cast brass whistle. There are two quibbles (1) the overall diameter and (2) the whistle reeds. The diameter could have been made larger at the expense of height. You have to be careful not to have the gas flame burning past the base edge otherwise it will burn the handle. Other reviewers have mentioned the whistle reeds furring up. Whilst we do not live in a hard water area, all water companies harden the water these days so it can still affect us to a lesser extent. I find scrubbing out the tubes from both ends with a tobacco pipe cleaner, the type with fine nylon bristles woven into the fluffy part. This seems quite effective and causes no damage, you could probably add a touch of silver polish for more effect. Any piece of quality Stainless Steel cookware will be heavy, as of course is copper and cast iron. If weight is a problem then you have to go for aluminium but pay the penalty of fairly frequent replacement as aluminium whistling kettles are not very durable. Looked after carefully, this kettle is a lifetime purchase.