Stay with Costanza! Her home is amazing and better than any hotel. It’s the perfect location, not loud at all. Removed from being at the center of all the tourist attractions but a 15 minute walk away. The room is perfect for a solo traveler or a couple. It was cleaned daily and having air conditioning was a lifesaver in the hot July heat. I would stay with Costanza anytime I’m in Rome. She gave me a map which was a lifesaver for walking around. So happy!