Our family of five stayed here for nearly TWO MONTHS, so we got very familiar with the apartment and the neighborhood. This is a fantastic find: great neighborhood that is quiet at night but with easy public transportation connections (metro, bus, tram) and only a few short blocks from Piazza del Popolo and Villa Borghese, with a daily market across the street, breakfast cafes all down the street, a fantastic Sicilian take-away (Mondo Arancina) as well as two wine shops nearby and an excellent restaurant (Borghetto) on the corner. Building supervisor is friendly and speaks English. The neighborhood has everything you'd want but isn't full of tourists and is very safe for children (much less car traffic than in other areas; no shady people or panhandlers).
The apartment was clean, in great condition, and has everything you need for a short- or longer-term stay. Beds were comfortable--it sleeps six (the couch in the middle bedroom is a trundle bed). A/C worked well--there are mini-split units in two bedrooms and the living room, and this was sufficient for the whole apartment in June and July. (Be wary that many apartments in Italy claim to have A/C but only have one small unit in one room. This one really does feel cool throughout.) Also, there really is a washer and electric dryer, not just an all-in-one or spinner. There's a nice entertainment system, too, with two game systems. The bathroom is spacious and pleasant. The kitchen is well-equipped.
Luca was very professional and super friendly--always helped when we needed something, including arranging taxis at times when we needed an airport shuttle. He always answered messages quickly, even procuring a baby bathtub for us when we couldn't easily find one.
We are "Rome-sick" now that we've returned to the US, and will definitely try to stay here again when we return to Rome on future visits. I am almost hesitant to leave this review because I want this apartment to stay my little secret!