You won't get a better location than this - just upstairs from alleyways full of cafés, bakeries, market stalls, bars, restaurants and shops, and within easy (and interesting) walking distance from everything from the Vatican to the Colosseum. There's nearby Carrefour, and the kitchen is well enough equipped for light cooking if you don't want to eat out every night.
The space is full of character, although taller people might have to stoop through some doors. That's the price you pay for being in such an old building though!
Pasquale was friendly and helpful, and I don't think we could have asked for the place to be cleaner.