5 months ago, after A LOT of research, I bought 8 KK bottles. They changed the way we drink! We take them everywhere. No more plastic bottles; I use filtered water and sometimes add a bit of apple juice to it for the kids.The pros: Even after a full day of being used, no bad smells or taste. sports cap easy to use even for kids, but has to be upright to not leak. easy to clean wide mouth.The con- really just one: the paint chips, on some bottles (red) it actually flakes. My kids don't mind, and I'm still glad I bought the colored ones, to tell who drinks from which one at the moment.The replacement sports caps (recall) finally arrived (the whole process took over 6 weeks).I decided to give them 5 points because the only thing I can find fault with is purely cosmetic.