My two friends and I stay at Amen's place for 5days. The house was great! Just like the photos. Two bedrooms , one with two beds and the other with a huge one! WiFi connection was great. Even though we visit Rome November 28th- December 2nd only during the night we were feeling cold, but the house was always warm (the heat was working, and there was also an air-condition) and our sleep was good. There was always hot water.
We found the location easy. Its about 5 min away from Termini. The city centre is not close enough but we were aware that we had to walk a lot during our stay at Rome. The negative thing about the house is that we found the neighborhood not very safe due to its location. The contact with Amen was great; always quick responses, detailed explanation.
We were supposed to meet Amen at our arrival time outside of the house to give us the keys. Instead, a couple of hours before our arrival, we got a message telling us were to found the keys (in a box that opens with password. We open the first door with a password and then the box). It was easy, but we never met Amen. Not even to get the city taxes (we left the money on the table the day we left).
Besides this fact, we would totally recommend Amen's place! We had a great time there!