Reaching there and check in: Very clear and accurate instructions given. 30 mins from Fiumicino airport by train. Very easy to reach the place (be ready to climb a hill though).
Amenities: Wonderful place with all the facilities. Fully equipped kitchen, bathroom and the room has a lot of closets. The only minor drawback is the WiFi reception which was not good in my room.
Neighborhood and ease of access to Rome: one hour by foot (30 min by public transport) to centre of both Rome and Vatican. Closest public transport 10 min by foot.
Overall: Easily the best host I've met of over a dozen Airbnbs I've been to. The host provided quick responses and gave excellent tips to get to different tourist attractions in Rome.