I did a quick weekend visit to Rome and decided to stay at Ernesto's as it's very well located (Trastevere district is quite lively with a lot of bars and pizzerias, all walking distance from the house), Trastevere station is a few tram stops away. Vatican City is about 25min walk. The house itself is well equipped with basic amenities although the room we booked (Eco room) is a tad small, so I'd recommend booking one of the other rooms at his place. Ernesto and Charlotte were around to receive us and are great hosts. They have an interesting project going on and there were events at the house all weekend. I'd recommend this place if you're coming to Rome for sightseeing and want to go out for food and drinks at night.