I can say just very positive things:
1. Lucilla was very reactive to my msg and Lucrezia welcome me at the apartment and she was a very positive, friendly and nice person. she suggest me many tips of the area.
2. apartment is fantastic in an old building in a quiet street but close to everything (famous bar, nice restaurants or so good pizza romana takeaway); supermarket is around the corner; bus and metro are close by but anyway you can walk directly to the most famous place in Rome.
3. wi-fi is working good.
4. apartment is not too big but is clean, confortable, quiet and you have everything for a nice stay even if you want to cook.
so definitely is highly reccomended. Thanks again Lucrezia and Lucilla.