I'm in Kensington with two roommates in an old house. It's definitely a great deal but if you are willing to live with roommates in a somewhat uncool area, similar deals are definitely possible: https://streeteasy.com/for-rent/nyc/price:3000-4000%7Carea:3...
For instance, here's $3500 for a 4 bedroom/1.5 bath that's on a quiet street but near a lout one https://streeteasy.com/building/171-east-8-street-brooklyn/3...