I stayed at Lydia's studio with my girlfriend for the weekend and we loved it! The apartment is very cosy and well located, close to subway stations and many really nice restaurants. Also, it doesn't get noisy at nights, which is probably a rare thing in NY. Although I didn't meet Lydia in person, she was very helpful and quickly answered any question I had. I had to check in very late so she left the keys at a nearby grocery store.

Two things that weren't an issue to us but may be to others: you need to go up five flights of stairs to get to the studio, and the room gets bright in the morning as the curtains are translucid.

Overall I highly recommend staying at Lydia's apartment!