Review on Coldest Water Insulated Stainless Thermos Kitchen & Dining by David Naranjo

I ordered the coldest 32oz water bottle for myself after ordering a 16oz bottle for my sister as a birthday present and she loved it. It definitely keeps the water cold for a long time, but there are downsides: 1) whistle. When I'm at work and drinking from a bottle, there's an annoying high-pitched whistle that can be heard 3.2 miles away. Doesn't do it with every drink, but definitely every few drinks. 2) As it is recommended to fill with ice, it may be difficult to put the cap/straw back on the bottle. Also, the length of the straw and ice makes it difficult to drink water when you only have a few ounces left. 3) There is a metallic taste that I can't get rid of despite washing shit. from that. So it definitely does what it's advertised, but the few things I've listed may be a major downside for some.