Pros:
Iradate, who checked us in and was our point of contact, was absolutely wonderful. Her communication was fantastic and when we had the issue with the shower, she helped to make sure it was resolved.
The decor was all lovely and attractive, with plenty of clean towels. All of the kitchen appliances worked well- fridge, stove, microwave.
The location is close to the Termini train and metro station- less than a 10 min walk for us to from door to door. (See location cons as well.) We chose the apartment because of it's proximity to the train. We took 2 day trips (to Florence, etc.) and left early in the morning, so we wanted to be close.
The apartment has 2 bedrooms and a living area with a spacious dining area. We had my husband and I, plus our 18 year old daughter, so it was the perfect space for the 3 of us. Iradate met us around 11am and let us leave our bags in the apartment, which was very nice and saved us from having to pay to store our bags.
Neutral: The apartment itself was just ok- not great, not bad.

Cons:
The biggest drawback was the smell. Every time I was in the apartment, it would trigger me and cause me to cough and wheeze. I would be fine all day when's we were out and then it would start back up once inside. It seems to be a musty, smoky smell and I am allergic to smoke, so perhaps that is what caused my coughing. The smell followed us to our next destination because all of our clothes picked it up. We had to wash everything to get rid of the smell.
Though no fault of the owners- the guests prior to us apparently broke the shower door. We didn't realize this when we left our bags there, so it was late the first night when we realized it. One side of the glass had broken. (The cleaners left the metal piece in the bathroom and I don't think they informed the management because they didn't seem to know.)
The shower drain was also backed up, so the combo of the two- broken door and drain meant we couldn't shower without water leaking from the shower unto the floor. Thankfully, Iradete was able to get someone to fix the drain and also did a temporary fix for the shower by adding a shower curtain. That was much appreciated as we would not have been able to bathe otherwise.
The cleaners did an 'acceptable' job, but when you reach into the corners to plug into an outlet or look under bed, in closets, etc- those areas are skipped. We found someone else's clothing left in the closet, wrappers under the bed (we stored our luggage under), etc.
The biggest cleaning issue was that they missed some of the glass pieces in the shower/ bathroom and my daughter cut her foot. We found 3-4 small glass squares left behind.
While the apartment location is close to Termini, it is also in an area with a lot of homelessness, graffiti, etc. We were approached by beggars several times, the area walking from the station smells like urine in places, and once when we were exiting the apartment main door, a man tried to enter as we left. I pulled the door shut behind me and he yelled at me because he wanted to get in, but he didn't have a key. We overall didn't feel very safe in the area - especially at night. I do realize it is a big city and some of these issues are common in big cities (I grew up in San Fran), but this area of Rome is dirtier than most of Rome. I suggest staying either near the metro by the Vatican or near the metro by Trevi fountain or the Spanish steps. Those were both much cleaner, safer areas.