I have 2 main gripes with all of the other travel mugs that we have at home. The first is that not all of the parts are dishwasher safe, and the second is that some of them don't fit into the Keurig w/the drip tray removed.
This mug solved both of those issues for me! I can brew a 10 oz serving into it with room to spare, and all 3 parts are dishwasher safe.
The rubber ring is perfectly designed to keep your hand cool, give it grip, and it doesn't slip off. I really didn't think it would be leakproof but it really is, I haven't had any issues with leaking or spills (obv if you knock it over some may come out, but otherwise it's great!) Fits in my car cup holder. It rinses clean without any staining on the inside. It's just the right size without being clunky. Cute design, of course!
It is not insulated so it obviously will not keep your bev hot forever, but I will say that after my short drive in to work, it is the perfect temp to start drinking it right away without burning myself.
I may need the other two patterns.