The Roma dei Papi Hotel is located facing the Castel Sant'Angelo, right on the Tiber River, housed in a beautiful building that is more than just the hotel (a bit confusing). We took the Metro from Termini Station to Lepanto Station and then walked several blocks to find the hotel. It's a great location for walking into the city to Piazza Navona, getting to the Vatican, and exploring Trastevere. The staff is very friendly and was great about recommending a decent place to eat at a very off-time (5 PM) for restaurants. Our room was a good size with a decent bathroom. A good value for this location.
From journal Weekend in the Eternal City