Andrea is a very welcoming guy, he met us at his place and explain everything about our staying at his flat (wi fi password, nearest supermarkets, pizzerias and many other things). He told to text him at any time if we need any advise or help :)
The flat is VERY cozy and comfortable. It locates not in the city centre, but there is no problem to get there by transport, it doesn't take much time.
I enjoy a lot my staying at this flat ! I will recommend this place for my friends, who will come to Rome in the future :)