Yeah, I have heard that Columbia has a really large cohort size and I also see that Columbia is a cash cow on the Gradcafe forum. But I have also heard that we will only have two classes max with each legendary professor and it will be really hard to connect with those professors since they will probably give research projects to PhDs and interact with them more frequently than us. Also, I heard that the career service in CDS is not really helpful and we have to look for jobs and internships all by ourselves. That's why I think it is so hard to choose between these two programs since both have pros and cons.