I stayed at B&B Home 77 for a total of four nights spanning the 3rd of October through the 7th of October. I found the staff to be very friendly and hospitable.
As an example, immediately upon booking, we received an email from Pasquale (the contact for B&B Home 77) asking us for our travel information so they can plan accordingly. Since they do not have typical hours for a hotel (they're a bed and breakfast) their front desk closes early. They accommodated us quickly and easily, since we did not arrive until 21:00. We simply just checked in the next day.
Overall I find the hotel to be very modern. It's best to consider this location to be like a modern, upscale college dormitory in which five or six bedrooms (each with their own bathroom) share a common living room/kitchen/dining area. The common area isn't very large, but I find the fridge regularly stocked with common necessities such as juice, water, bread, jam and other essential nutrients. It made the stay quite enjoyable.
What I also liked about B&B Home 77 was its location. It was close to a Metro station and a Bus Line and a short distance to Roma Termini train station via Taxi.
Both my wife and I concur that during our 14 night stay through France, Germany and Europe, B&B Home 77 was the best hotel experience for us. It was just very relaxing and modern. A good touch.