I really like this little travel mug.  I keep at work and it’s perfect for what I need. I’m a teacher, and my classroom is on the opposite end of the building from the teachers lounge so I keep my own mini brewer in my classroom. This little mug fits perfectly and when I do get called to a meeting I can pop the lid on and lock it. It doesn’t keep my coffee or tea hot for hours but it does keep it warm enough for long enough. I don’t put this in the dishwasher just because water does get underneath the sleeve and rusts. I just bought my second one of these mugs and hand wash it as soon as I’m done.