The apartment is in as good a location as you could want. Just two minutes walk to the best shopping streets in Rome. Also all tourist attractions are short walks....colosseum 15-20 mins, Spanish steps 5-10 mins and Vatican 20 mins.
Really you can't go wrong location wise.
The apartment itself is lovely and cosy....very Italian in character with the floorboard and roof joists. (However the low beam upstairs is quite low....I smacked my head a few times) but that's just a minor detail in a really great apartment!! Would definitely recommend.