The appartment is in excelent condition. Very clean and with comfortable beds. It has everything you need. You can also acces to the terrace one floor up with an amazing view of st peters cathedral. The location was perfect for us, it litterally 1 block and a half from the vatican walls. You have the sibway station 2 blocks away if you are coming from termini and 8 blocks from the shuttle to Fiumicino that only cost 6 euros to get you to the airport.
Simone is a great host, allways available and in care of your needs, one day he actually crossed the whole city to come to the appartment to help me seting out the internet. Great guy, i recommend him and we will suerly use his appartment when we go back to rome.