We enjoyed our stay at Filippo & Benedetta. The apartment is not at the nicest areas of Rome, but you can reach everything in walking distant, so perfect for a sightseeing trip. For us the location was just fine, because we arrived at Termini station and so it was just a 10 minute walk with the luggage. You also find some nice and authentic italian restaurants in this area.
The apartment is not huge but we were 6 adults and there was enough space for the three days we stayed there. With 6 people for a longer period I would not recommend it, but for a short sightseeing trip it is perfect. It was equipped as described – very lovely and stylish. There were even some ingredients for the first day - coffee pads, milk, pasta, ... That was very lovely. Also the check-in was uncomplicated and Filippo also responded every time very fast. The only thing which we underestimated was the noise. It is next to the train line, but the trains are not the problem, the street is very noisy. If you are a light sleeper you need good ear plugs.
All in all we enjoyed staying there and I would book it again if I plan a trip to Rome with some friends.