The apartment is a really stylish, nice and cosy place. The terras is wonderful! The apartment is situated on the fifth floor, but the complex has a (small) elevator :-). The neighborhood is lively, with much cafe's and restaurants just around the corner. You could stay a week and have every day lunch and diner in a different place.
Metrostation Cavour is 3 minutes walk away. Colosseum and Forum Romanum are a 10 minute walk.
Roberta was a perfect host to us. She welcomed us by arrival and showed us the ropes. She was really helpful by finding out how we could get to the airport in the middle of the night.
I really recommend Roberta's place when staying in Rome!