The apartment is very comfortable, large, good planning, with everything you need! It's really ideally located apt. - near Castel Sant'Angelo, piazza Navona, Pantheon. Via dei Coronari has its own unique flair and comfort, without the crowds of tourists. All other attractions are within walking distance (we were able to visit everything by foot). There are many good restaurants near the apt.
Mario is very nice and hospitable man. He is very polite, punctual and always ready to help.
I think it's perfect variant for unforgettable Roman holiday!