I had a very pleasant stay at Roger & Team's house.
Location: Could not be better. It is literally walking distance to the main attractions. (not exaggerating, it is really close!)
Connection: it is very close to Marcello Theater where you can get to anywhere from. Also, from the other side of the house you can reach the tram way. Connection was very important for me and it really met my expectations. However, you really only need it to get to Vatican.
Room: Spacious and Clean. It was well organized. I have been to some Airbnb's before and this one is among the best. There is a Bedroom with 1 king-size and one single bed. There is a couch in hall. Hall and the bedroom are connected through a hallway. Bedroom has windows on both sides. Room is well ventilated as there is also an air conditioner plus a fan. Chicken has all the basic stuff needed for cooking and eating. Bathroom was super clean and had even some hotel shampoos and clean towels. You can check the neighborhood with google street view. The streets are narrow and houses are facing each other so on one side you see other houses windows. On the other side there is a back yard which has a very nice view.
Host: The best part. Santa was very friendly. She took her time and gave us Some tips on where to get the Roman food experience and how to get around. She was kind enough to let us check in earlier and also offered us to leave our baggage there after check out. Room was exceptionally clean however we asked for one extra pillow case and they provided it in less than hour!
Tip: Rome tap water is drinkable, but we ended up buying bottled water as it was not as good as we expected (it is not related to the room of course and apparently every one else was drinking water, especially from drinking fountains all over Rome)
It is ideal for a couple or a family up to 4 people. (3 on bedroom one on couch).
I would totally go back to this place!