i love this cup, i had several of these and over time they got broken, had to get a couple more as my backups cause i can't live without this coffee cup!!  keeps coffee hotter and the double wall means i can sit it anywhere and not worry about the furniture!!

Pros: double walled, see through, keeps coffee hotter longer
Cons: best to wash by hand, glass is not good for putting in dishwasher, but well worth the trouble!!