I visited there a couple of weeks ago.
Location: St. Luke's: Upper west side. Roosevelt: Midtown. The interview takes place at St. Lukes is right by Columbia U. Residents are considered clnical fellows of Columbia and therefore have access to their facilities. I thought the area was nice. The hospital own 3 buildings for resident housing. I was told it's around $900.00 for a studio. Of note, if you have a significant other, you only still get a studio. The 1br and above are for residents with children.
Program: Good mix of biological and psychotherapy. Very strong addiction psych as they are connected to Addiction Institute of N.Y. Normal didactics. The PD is a very nice and young, a graduate of the Columbia system. Every resident I spoke to had only good things to say about him. Since his arrival, there has been increased emphasis on psychotherapy. Apparently he is also an excellent interviewer.
Pt popn: Very diverse. I don't think you can beat the diversity in NYC. In addition, bcs they have 2 hospitals, you get to see even more pathologies. St. Luke's tend to be more of a severely, chronically mentally ill pts. Roosevelt more of the upper class. I believe they said they have a decent number of borderline pts.
Research: This is not a huge university hospital. Although it's affiiliated with columbia, the breadth of research is lacking. That being said, you can always search out PIs and set it up on your own. There's also an M.D. who specializes in helping residents get involved in research. And as mentioned before, Addiction Institute conducts a lot of addiction related research.
Residents: pretty chill. A lot of FMGs and DOs. But I have nothing bad to say about them. There were no major language barriers. I did notice that a majority of the applicants were DOs on the day that I interviewed. I'm not sure whether St. Luke's is considered a DO friendly program but it sure seemed that way.
I think that overall, it is a good program. Certainly not the strongest program but good nonetheless. I think it's worth your time to take a look at it, if you're interested in living in NY. Me, I'm not ranking it high because i'd rather not be in NYC. I don't want to move into an even smaller apartment and share it with my GF.
Let me know if you have any more questions. Good luck.