Nina and Luigi were very kind and helpful, they personally picked up from bus station to take us to the flat and gave the keys.
The location was perfect, near train station, differents markets, bus station (to go to the Vatican) and some historical places such as the Colosseum. The flat was ok, cozy, spacious for two people and every thing works well. The only thing we missed was a toster for bread :(
Anyway, we highly recommend this flat!