Antonella is a really friendly host. She was very understanding about my very disorganised friends who didn't seem to know what time they were leaving. The flat is very comfortable and spacious (we were 3 women most of the time). It is very clean and the beds are very comfortable.
The terrace is a plus.
The neighbourhood is fantastic-close to the centre but not touristy with great restaurants and ice cream parlours as well as fruit shops.You can walk from Ostiense station if you are coming from Fiumicino.
I would definitely recommend Antonella and her flat. She and her husband were kind enough to drive me to the station after I shopped too much.