The bottle is very cute - love the colors & swirls. Easy to hold in my hand without a death grip on it - not as heavy as the 40 oz.
My only complaint is that it is noisy and “airy”. I have repositioned the straw, the lid, cleaned everything again, checked the straw for a hole, but it continues to squeal when I take a drink and it doesn’t consistently provide a steady stream of liquid when you suck on it. If you’ve ever gotten a fast food drink straw with a hole in it, that is what this acts like. Disappointing- it will work OK when I am working at home by myself, but I bought it so that I could throw it in my briefcase to take to work or purse to take out with me. It’s so noisy that I would hate to take a drink in a quiet room with its squealing- would be very distracting to others in the room.