The studio wes very romantic in a great quiet neighborhood that about 15 min walk from the Mare'. Use Google Maps to find the best way to get from the metro. Buy tickets advance! (10 tickets for 2 people is good for 3 days).
In the studio there is small balcony. Last floor with elevator.
Dont miss eating in the great restaurant next to the building called-blue valentine.
Another wonderful restaurant close by is Pierre Sang - you need to have reservations.
Enjoy :)