It leaked. I wish I had read the reviews before I bought. I would not have purchased. 

When it arrived it had such promise, too! I loved the design. It felt so good in my hands. Then I washed it and when I picked it up again it sloshed! What?? And it had such promise. Apparently water had seeped in and, of course, each place I set it down resulted in a ring of moisture. 

We had purchased two and, based off the other reviews, (We did put coffee in each and found the ring of moisture occurred for the one that did not slosh, too. So, both seeped.) I decided to not contact you, Keurig, and ask for a replacement or refund. We have so very many other wins we figured every one should be allowed an occasional fail.