My husband and I stayed in Mario&Ciro's Trastevere studio for 5 wonderful nights. The apartment is very well-situated: on a quiet street, but just a few blocks away from the lively bars and restaurants. It's very walkable to central sights, ~15 min to Piazza Navona, ~20 min to the Pantheon, and ~30 min to St. Peter's Basilica. The studio has all the necessities, and the private terrace above is an amazing feature. On two evenings, we purchased wine from Ferrara (neighborhood wine bar + restaurant), and enjoyed them on the terrace during sunset. Would definitely stay there again!