Fantastic location, 3-4 min walk from Roma Termini, the main train station for all connections. At 15 min walk from the Colloseum.
Paolo, the host was great too. He gave us an annotated city map that turned out t9 be very helpful.
The place in itself was very comfortable and clean. We found all the ameneties that we needed and did not have any problems of any kind whatsoever.
The only thing to keep in mind is that the bathroom was small and my knee would hit the basin most of the time when seated on the toilet seat, but then most of the apartments in Europe are smaller than American or Asian standards, so not a big deal. But if you are big sized person, specifically be on the lookout for places with bigger bathrooms.
All in all, an excellent stay that I would recommend to everyone.