It has turned into my at home mug
I pulled it out of my gear bag and started using it at home. It is hard to go back to using a porcelain mug and a lukewarm beverage after enjoying using this mug. My only complaint is that the lid pops up and won't stay down when the liquid is still hot. I purchased one to see how it was and I think I will be getting a few more along with the larger 600 .