Tom's place is gorgeous. Perfectly located in the heart of Rome. Walking distance to all the major spots, like: Vaticano, Piazza Venezia, Trastevere, Colosseum, etc...
Even though it can accommodate 4 pax, I don't suggest it for more than a couple. The toilet is on the second level, near the bed, so if you are more than a couple, you gonna lose your privacy. Also there is no doors from downstairs and upstairs. Cutting in short, it's a great place for a couple, not more.