I really like how this water bottle keeps my water at the same temp while I'm drinking it. It holds 24oz which is enough to get me from morning to lunch time before I need to refill it. The auto seal option it has is very nice so if you accidentally knock it over you don't have to worry about spills. It's easy to drink through the opening at the top and it seals tight when you're done. It's a nice overall size that's not bulky to carry and is easy to hold.