Big, very clean, stylish and modern place, - near to all the typical Roman sites: Colosseum, Trevi fountain etc.
Perfect for two couples, with two separate sleeping quarters with private bathrooms.
Super flexible checkin and fast and effective communication.
Not that much to do right outside, for the most part municipality buildings and cars. For a more vibrant area and less traffic, check out Trastevere on evenings - a good 20-25 minute walk from the flat.
Anyway - very clean, safe and comfortable stat, and very professional host. Surely recommendable.