Excellent place - large, clean, conveniently located within walking distance to both metro lines and many attractions. Central air conditioning, which is huge in the summer, and not very common in old Italian building in central locations. Pina was very nice. I accidentally sent her check-in time that was an hour before our actual arrival, but she greeted us with a smile. She gave us lots of local tips (Gelateria La Romana 5 minutes away had the best gelato we had during our 2-week long trip and our Colosseum guide knew of it) and helped us get a taxi to the airport on our way home. She also responded to all communications very promptly. Highly recommended.