The good: Fantastic location, easy to get to major attractions in the city. Communication was superb and fast. I appreciated the assistance offered to arrange for airport transport pick up, so much faster and convenient than waiting in the queue for a taxi. The apartment is large and spacious for our family of four (2 adults and 2 teenagers). And the air conditioners definitely were a plus during a little heat wave in Rome at the time.
The not-so-great: I expected a washer because we had been traveling for a week and needed clean clothes. However, although it wasn't working, he did direct me to a laundromat that was very close by and easy (I grabbed a cappuccino and read my book while it all washed/dried). I felt the apartment was a bit shabbier than what is shown in the pictures (sofa cushions are worn, bathroom cabinet was broken, the shower had a lot of mildew and needed a good clean, but we weren't in the apartment the duration of the day...so it was a minor consideration.