My wife, dog, and I had a very nice stay at Sarah's place (we were supposed to have a third staying but they ended up leaving early). Sarah was very communicative and reached out to us to see if we needed anything during our stay and the check in procedure was a breeze.
Overall, the place was nice, quite spacious, and very comfortable for hanging out in - definitely one of the nicest spots in NYC that I have stayed. The top floor (where the entry was is) has an open kitchen / living area, full bath, main bedroom, a secondary bedroom which has an ottoman that folds out into a single bed (though we were told the couch downstairs is comfier as a bed).
The downstairs is one open room with two area (bisected by a bookcase) with one area having a TV area with comfy couch (we were told this pulled out into a bed as well though we didn't end up needing it). The second area has a table and office desk. There is also a half bath downstairs.
The place also has a very nice, private back outdoor garden area (with entrances from both up and downstairs) which was very nice to hang out in and offers good privacy as well.
We didn't have a lot of excess time so didn't take the train anywhere during our visit, but there is a train station just down the block. The neighborhood is also pretty walkable and there was a nice little coffee shop around the corner which also had bagels and some other breakfast stuff.
Overall, would definitely recommend and would stay again.