Our host (Edoardo) was excellent. He responded quickly to our pre-arrival inquiries and he made us feel immediately welcome upon our arrival. The apartment was as described and the neighborhood was a working-class neighborhood that offered plenty of stores and felt safe to walk around. I would stay here again (more details below).
The apartment is perfect for a family of two adults and 2 or 3 children. I would not describe it as a great place to hang out all day (too small), but it's a great place to sleep and eat in-between exploring Rome.
The bedroom we (adults) used was sufficient for a double bed; our bathroom was the main bathroom (not private to our room). The children (3) each had a single in the larger bedroom (which had its own bathroom, where a small washer--no dryer--was located; a small towel rack in the main bathroom and the heat registers in each room can be used for drying). Each bedroom had wardrobes and dressers sufficient for what most people would bring on vacation.
The kitchen is small but sufficient to prepare meals (mid-size fridge with freezer, sink, stove [though no oven], microwave and dishwasher). A basic selection of dishware, food prep items, etc. was provided, along with a random selection of items such as salt (no pepper), sugar, and some spices, etc. Plenty of other essentials (cleaning supplies, toilet paper, etc. were present).
There is a 4 place table with 4 chairs (and 2 foldable chairs) in the remainder of the kitchen, along with a couch. I wouldn't call it a living room, but a few people can hang out in there while making dinner and everyone can crowd around the table if you have more than 4.
The room is on the second floor on a corner with good windows that block most of the sound and all of the light, if desired. The door was solid (typical European--twist the key around 2 or 3 times). The front door to the apartment building also requires a key, but just like everywhere else that isn't going to stop anyone from entering. Either way, the building and neighborhood seemed safe; we had no concerns.
The parking is inside a limited access area (it's a small lot, adjacent to the building but with a common sliding gate).
There is a supermarket about a 3 minute walk from the apartment, with dozens of smaller food stores in every direction.
There is a Metro station within a 5 minute walk in either direction from the apartment.
The Wi-Fi worked great.