Received as a gift some months ago.  Love the cup and the warm coffee, even though it takes me quite a while to drink a whole cup.

Unfortunately, the lid design is very lacking, especially given the cost of the mug.  It is a "push down to latch" design, and after some use, it doesn't latch well.  My first lid broke while I was repeatedly pushing down it, trying to get it to latch.  Thinking it may have been my fault, I ordered a replacement lid only to have the same thing happen after about a 5 weeks' use.