We chose this apartment as it was close to my work. The apartment itself is quite big with two bedrooms and bathrooms and everything you need in the kitchen including a washing machine. Our stay was very comfortable.
Although note that since it's close to Termini the surrounding streets are quite sketchy at night time. So watch out for pickpockets!
If I returned to Rome for holiday I would choose somewhere closer to the main sights as it was at least a half hour walk to the main area of sightseeing.