We stayed here early October. The apartment is beautiful, clean and tidy. All our needs were met with the small kitchen, the bedroom is comfortable and the outdoor terrace was a real highlight.
It's located near some amazing restaurants (Zeb is a must) and right beneath the Piazzale Michaelangelo, but is tucked away in the Forte di Belvedere, so feels quiet and secluded.
Stefania was helpful and easy to communicate with.
Can't recommend this enough.