You absolutely cannot beat the location of this apartment. We walked to the Pantheon (5 minutes) the Coliseum (20 minutes) and Vatican City (30 minutes). Shops and restaurants are all very close by. If you want to be in the thick of things, this is the apartment for you.
One thing - there are over 60 steps to get to the apartment. Thankfully our check-in host, Andrea, carried up our bags. It was great exercise but something you should know. Also, keep in mind that since is in the center of a lot of wonderful energy and activity, you hear quite a bit of the street noise at night.
Our hosts offer a convenience email address for any concerns and were very responsive. They even arranged airport transport and I can attest that it was the least expensive transport we had in our whole trip. All in all, this was a great place to explore Rome.