Location, location, location. We walked everywhere to Romes big hits Pantheon (1 min) to Colosseum (16 mins) and everywhere in between with Trevi fountains, Spanish steps, etc. Taxi stand is 1 min away. Lonely Planet has some of the better restaurants in this area and two of the top rated Gelato shops.
Gemma provided amazing extra's that made this location a step above. She had food items from jam, fruit, coffee, pasta and fresh milk in the fridge. She provided electrical adapters, napkins, umbrella's, soap, etc. just in case there you forgot about them. Gemma also arranged a driver/car to pick us up and drive us to the airport for the same cost of the car.
The apartment had a lot of room from a kitchen, to living room with dining table and bedroom. Leaning out the window and watching people go by having morning coffee was fun. The shower was small but very typical of older European buildings.