Francesca's place is beautiful and is in such a great location. The apartment is modern but has nice old building details like coved ceilings and beautiful windows. The location is perfect - the street is picturesque, fairly quiet, but so close to great food, bars, and a grocery. This is a great value as well - we stayed in other places in Roma that weren't nearly as nice for more money.
Francesca is wonderful as well - she's Roman (and very chic), so knows all the great recommendations for exploring Roma like a local.