Kevin L.
Yelp
On one hand, this place is brilliant for being attached to a museum, open continuously throughout the day (a near impossibility to find in Rome), and located off a tucked-away street in Centro Storico.
On the other hand, the coffee prices are absurdly exorbitant for no greater quality than what you could score for a pittance at any number of nearby cafés.
It -does- serve a crucial purpose of offering those with the time and money to spend sitting around, idly whiling away their hours making conversation over a coffee (or... working on a laptop or reading the paper) a place to rest their bums. And it looks good doing it, too.