Love this!
I bought this on a whim, as I am a big tea-drinker and wanted something that I could use on the road. For home I have a Bodum loose-leaf tea pot, but this is the perfect thing for the office.
I have had no complaints and make sure to keep an eye on my tumbler when not in use because of all of the interest my coworker have shown in it. Tea stays hot for quite a while and the size is perfect for car cup-holders.
Highly recommend!