Perseo is a cozy and pleasant Bed & Breakfast in the Prato neighborhood in Rome, very close (400 m/quarter mile) to the Vatican and conveniently located just across the street from a Metro/subway station. The service is good, the breakfast they serve is typical Italian (yogurt, orange juice, coffee, "cornetto" pastry, rusks, butter & jam) and is delicious, but they only serve it between 8-10 which can be late if you plan on starting your days early. The rooms are spacious but very basic; you will not find refrigerators in them so avoid buying food or snacks that needs to be refrigerated. The bed is comfortable; the walls are a bit thin so you might occasionally hear neighbors or the maid in the morning. The bathroom and shower are nice, clean, and sufficiently spacious. When paying, keep in mind that they only accept cash (no credit or debit card); make sure to have exact change as they will otherwise round the amount up to your expense (we "lost" six Euros which is not much but can leave an aftertaste). Overall, the stay was pleasant and the facility offers very good value for money for a B&B in Rome. I recommend Perseo without reservations.