It was really a pleasure to be hosted in Cristina's appartment. It is clean, with fresh bedsheets and towels. Place is located on 2nd flor, with 2 balconies, bigger with the washichng machine from the courtyard and second is from the street, but the street itself is really quiet, you can seat there in the evening and rest after whole day.
Pretty close (minute walk) there are couple small shops where you can get some food if you will arrive in the late evening just like us. Remember to visit Gelateria Lubrano, which is 1minute walk and they have the best ice creams in the area.
Walk to metro takes about 7minutes, so the communication to Colloseo, Termini etc. is just perfect.
I can totally recommend Cristina as a host, communication in english is also her strong point. Generally I would give 10 stars instead of 5 but its technically impossible :)
If me or any of my friends will be visiting Rome in future, Cristina is the very first person of whom I will think, while looking for a place to stay.