I purchased this water bottle for my daughter. With the updated middle/high school codes, they must now have ONLY CLEAR water bottles in class, and this one fits the bill! I chop up lemons, place them in the cartridge, and freeze them overnight. In the morning, I add water, a few ice cubes, give it a couple of shakes, and she’s good for the day. She loves her new bottle. I have only had it a week, but it seals nicely and seems to be holding up well. It also included two extra seals, for the future. Will consider buying another one for myself in the future.