I love the bottles! I have 2 14oz, 1 20oz (my Frida bottle) and 1 34oz. I have to boil water where I live because the taste is awful, so it is great to be able to pour boiling water directly into the bottles wait a few minutes and put them in the fridge to get cold. I like having several bottles in different sizes for varying occasions - taking a large one to my office on a work day, having a smaller one by the bed at night and whatever size I need when running around the car. I am not a fan of the flavors, but I know lots of folks are - but I can honestly say that just HAVING the bottles is spurred me on to drink more water and fewer carbonated beverages.