The apartment was exactly as described and very close to the Spanish steps. It was very clean and the bed was very comfortable.
All of my emails were answered in a very timely fashion. The only thing to consider when booking is that this apartment is up 3 flights of stairs, and it was no fun dragging the bags up. I also thought it seemed slightly larger in the pictures than it actually was, but no big deal. There was plenty of space and you won't really be spending time there anyway.