I honestly wish I had shopped around a bit more... This sucker is a great idea, and looks pretty good, but there are better products out there.
Firstly, go for the stainless steel ones. This one is PVC and it freaks me out a bit to put hot liquid in it. Also, the heat from coffee melted the glue holding on some of the little components, which fell off. The markings on the mug took about a week to start rubbing off.
Shop around, there are better Canon mugs for this price.