The apartment is close to the historic center, you can reach most of the monuments between 15-30 min walk easily. It’s also close to the airport, by tram, which is also very convenient to arrive by plane. Very close by walking distance to the train station too (~10min) if you want to visit cities around (Sienna).
The apartment is located in 1st floor, pretty dark, the only window in the living room opens to a small courtyard, it’s actually convenient as it can get very hot outside, it keeps the fresh air. Kitchen accessory set is ok. The restaurant’s downstairs create an oily smell that gets into the rooms, it can get noisy too, especially at night time and sometimes until 02:00 PM.