I use this every single day and refill it often. I like that it comes with a flip lid and a lid for a straw which is included. By far, the best in keeping your drink cold. I haven't tried it for coffee, yet, so can't review the hot part. The lids do not have those clear seals that collect mold and turn colors. I have them in every size and have given them as gifts. That's how much I love them.
Rating:
[5 of 5 Stars!]