This cup is really great. It’s a solid cup and it is very durable. The cup’s design was well thought of. It’s really easy to clean. There are no straws or small pieces to worry with. The twist off top is nice because it ensures that there will be no spills. It didn’t fit in my cup holder, but with the twist top it was very secure sitting in my seat. I poured a cold soft drink in the cup before I left for work, no ice, and by the end of the work day the drink was still as cool and fresh as it was at the start of the day. I am really impressed.