We never met Giampiero, but his wife was very helpful. She explained everything very throughly. The apartment was small. Really only a bedroom and bathroom but good for just sleeping in while exploring Rome. The bathroom is very small. The apartment is about a 10 minute walk from the metro and 15-20 to the colosseum, farther from everything else. Be prepared to walk because the metro in rome isn't very extensive (it does take you to the Vatican however, which is great). Overall, we had a good experience.