We spent three weeks in Francesco's apartment in March and April. The location is the best possible for walking to all the tourist attractions. The building is a typical old multi-storied one on a small, picturesque, busy street with many shops and eateries everywhere. The apartment is one story walk-up and in the back. Much less noise that one might expect given the location. We were never bothered.
The washing machine was quite useful. Nice kitchen. Comfortable double bed (king-size by US terminology).
Francesco was responsive and helpful both with our planning and during our stay.
We recommend this place unreservedly.