I can only recommend this apartment! The location is perfect, you can reach all sights within short walking distances. There is a supermarket as well as several restaurants and cafes around the corner. It is also a very safe place. The apartment itself is beautiful decorated and has a nice, big bed with a window to the street side. Although there is a main street close by, it is not noisy. For long-time stays a washing machine would be perfect, but the rest is just excellent.
Luca himself is very nice and always helpful. He is keen to make your stay in Rome just perfect.