Our stay with Federica was wonderful. The bed was very comfy. The view from the patio was beautiful and it was sort of in a convenient location. It was 2 blocks from the beach. The beaches were nice, there were free ones and ones to pay for; I would recommend going to do one you pay for. The apartment was 3 blocks from a super market and it was easy to walk to. The train station is a 30 minute walk away and the down town "touristy" part of Ostia was about a 20-25 minute walk away. We were traveling with a friend who was from Italy and spoke Italian, so it was nice to have him to translate on this side of town. Especially with the hosts as they didn't speak English. I also found that the restaurants on this side of town were not too fond of Americans. We were treated very rudely when our Italian friend wasn't with us. So keep this in mind. But when on the other end of Ostia closer to down town everyone seemed pleasant.
The house itself was very clean and I felt at home there. I would caution if you want a place with wifi to think about this place twice because the add says it is included however at first she explained it would be £15 unlimited for the 3 days we were there. But somehow got lost in translation that it was actually only 15 hours free and then every minute after we were going to be charged for. She did tell us to plug in and unplug the wifi box when we weren't using it... But as we all are Americans and our only contact to home is wifi when travel it was very frustrating to have to stress out about when we could and couldn't use the wifi.
The stay was nice and Federica's husband even drove us to the airport upon checking out. Of corse he charged us £30... But the taxi to the house from the FCO airport was £40... So he did save us 10 bucks and it was very convenient. They were a very sweet couple and were very helpful when we had any questions, but again we needed our translator to ask them... All in all it was nice. I would stay there again.