I stayed here with my parents and sister and it was great. The apartment is recently renovated and everything is nice and clean. The kitchen is fully equipped and we got to use non-perishable items from previous guest and we left ours too, so it's a good thing to keep doing.
It is 5 mins walk from Vatican City, has supermarket, restaurants, gelato and bus transportation in proximity.
You really get 4 star hotel treatment from Luigi and his father. Communication is constant and prompt. We highly recommend this place for your next stay in Rome!