I love everything about this Swig mug. It keeps my coffee very hot for hours. It is super super cute!!! (That's very important ) I like the rounded edge on it so it is like drinking from a regular coffee mug, and it fits securely in our cup holder in our vehicle- which is a very top priority as well. Highly recommend. Opal & Olive had an exceptional price on this and provided very fast delivery! 100% satisfied with this purchase!