We were in the room for 4 days. The room was very pleasant as it was very clean and had every equipment needed ( bathroom towels, hair dryer, soap, fridge, kettle...). The small balcony in the morning is perfectly suited for breakfasts ;)
It is located 3 min by foot from metro Linea C, which serves in 10-15 min SanGiovanni. From there you can either visit around or take Linea A serving many of the touristic places.
Metro ends pretty late so coming back to the Airbnb in the evening is not a problem.
Give it a go !