We loved our stay at Alessandro's apartment. 30 minutes walk from the Trevi fountain, 20 minutes walk from the Colosseum, 10 minute walk from the train station, 5 minute walk from the nearest Hop-On Hop-Off bus stop. It's a fantastic base of operations for your time in Rome. Wonderfully clean and stylish (make sure you look at all the photos) with all the amenities you need.
Alessandro recommended local places to see and places to eat. We visited Grazie a Dio è Venerdì (5 minute walk downhill) on Wednesday evening and enjoyed a delicious pizza meal. Try the "cheese bowls" (it's Italian-style fondue).