We had a very pleasant experience in Csj unit. The apartment was clean and had everything we needed. The subway station was very close (only 5 min. walk) and there were a few grocery stores near by.
The city center (Times Square) was in the same metro line that the apartment (line 2) and was only a 15 min ride.
The King Size bed was very comfortable as well as the sofa (that doubles into a futon). The kitchen was a little bit small but we didn't made large meals, so it fitted well with what we needed.
We had a little mishap in the middle of the stay but Csj came up with a solution very fast and was always available for us.
Overall we had a good stay and we recommend the apartment to whoever goes to NYC.