We spent 5 wonderful days in Federico & Irina appartment. The appartment is exactely as in the pictures: the rooms are wide with very comfortable beds and the decoration is very nice.
We just need to mention that Roma is a noisy city (with lot of traffic even during night) and some of us used earplugs during the nights since we are used to live in a very quiet environment (hopefully the windows are well isolated and limit a huge part of the noise).
We also closed the shutters during the day when the sun was shining to limit the heat in the appatment and it was perfect (end of April).
Federico was very helpful to provide nice restaurant addresses and to arrange reservation for us so we definitely recommend this appartment!