Marco is a guy with professionalism. If you have any questions related to Rome he will guide you how to reach there from his house. In fact, this house is also on a posh area and Marco live next door to this flat.
The easiest way to reach this house is via taxi but it’s a bit expensive around 50-60 Euros and the cheapest is via Bus which will cost you 3-4 Euros so there is no comparison between the bus & cab price.
For any place you need to visit from this house, you need to take 913 bus whose stop is very close by. To be precise, you need to go straight, turn right and then again right and here is the 913 stop. For tickets, you can grab one from the Tabacchi store which is just round the corner from the first right you take to the bus stop.
And I must say, the house looks even more beautiful as shown in the pictures. It has 2 big bed rooms, 2 balconies and a one with a view to St. Peter's Basilica dome.
So overall we enjoyed a lot staying here, the only issue which I found is the Wi-Fi which I had to restart it twice during my stay.
Rest is amazing including the host Marco.