The appartment is nicely located in an area with a lot of locals. The appartment itself was very clean and nicely furnished. The terrace is on the rooftop and pretty big and inviting for a cold beer at sunset. Mauro is also a great host who welcomed me with a short tour around the area of the appartment and gave tips for breakfast and dinner locations.
Furthermore, a Metro station is just around the corner (one minute walk), so it is quite fast and easy to get into the City Center. I personally like the location pretty much as you have a square at the metro station where locals meet in the evening.
Overall, I would definitely recommend this place and come back when I am in Rome next time.