My mother and I stayed at Alessandro's for 3 nights. The apartment was immaculately clean and as expected, check-in was easy, and Alessandro was quick to reply and even gave a list of his favorite places in Pigneto.
The area is beautiful and quiet, and offers good food, coffee, and drinks (the nearby wine bar Enoteca Vigneto was excellent), and is very recommendable for those looking for an authentic, down-to-earth experience of Rome, but if you are simply going to Rome for the big tourist traps, then you might want to find a place closer to the city center.