Definitely recommend Stephanie's place! It's very quiet and clean, with lots of cute artistic decorations. My roommate is also very friendly! If you have any questions just ask Stepanie directly, she is very approachable and nice - I can usually get her reply within hours. Plus, it is pretty closed to the A/B/C/D subway - you can travel to Time Squares/Ktown for around 20 min. One last thing I would like to mention is that, if you are a student of Columbia, this place is within the delivery zone of Via - you can take the evening shuttle for free every night :)