Sergio was an amazing host! I did not meet him, but he was very responsive with questions/concerns all the way up until we left. I was arriving at 9 am that morning when check out is usually 11 and he said it was no problem. He had a room ready for us by 9:30, which is pretty early. The room had an amazing view of the Vatican and was within walking distance.
Rome is pretty large so it is hard to be in the center of everything, but this place wasn't walking distance to the town center. It was about a 45 minute walk to the Trevi fountain area. Luckily the taxi's are cheap and easy to get in that area. Overall a great experience, and I would consider staying here again!