Chiara was very good host, his place is on a great location to see Rome, near to metro station Ottaviano, City of Vatican is just few minutes walk. Lot of buses as no 492, no 23 etc. very easy to reach any part of the city from that point, specially if you are whit kids.
Apartment was big and clean whit anything you need for life. Only problem is traffic noise in 2 bedroom's, so host just need to put new windows and I think that apartment will be perfect.
Very near you have few supermarkets, I suggest Todi's and lot of different shops in that very live area.
If you are looking for best Italian pizza you must visit Bella Napoli 2, just 2-3 min from apartment!
If you are in Rome to see tourist attraction I suggest you Arena Tours Rome special for Vatican and Colosseum tours. Beside this if you have a time you must visit Leonardo da Vinci museum near to Campo di Fiori market...