The place is great, situated in the city center. You have everything you need within a radius of 5 minutes' walk: Fontana di Trevi & many more touristic attractions, supermarkets, metro station, bars and restaurants.
You can even leave your luggage at the laundry shop right next to where the apartment is situated (5€/day).
The bed is comfortable, the apartment clean.
Marima is kind and friendly and replies very fast. Both check-in and check-out went smoothly.
I recommend this place to anyone visiting Rome!