Hi there I know this question wasn’t for me but I lived in providence for a while and go to school right outside of NYC. Providence is filled with college students (Brown, RISD, Johnson and Wales, Roger Williams, etc) and is MUCH MUCH smaller. I love providence because it’s much more historic feeling than most of NYC and has a cute little river going through it. The area that the public health building is in is super cute and right near RISD. Plus the Providence Place mall is extremely close. It was barely ever extremely crowded (minus nights where they have water fire which is when they do a show on the river involving fire) and is incredibly walkable. NYC is much busier, much bigger, but also has public transportation (providence has buses but everything is basically within walking distance). I am not overly familiar with Mailman’s location because it is not on columbia’s main campus, but NYC is just much much busier. It also probably offers more opportunities just because it’s NYC and there’s always things going on there so it’s basically impossible to be bored! Also definitely much more expensive to live in NYC. Hope some of this was helpful!