I've been living in Bed-Stuy a month now. I'm still getting used to the commute.
Compared to the L, there are fewer people riding the J, which means there are often seats to sit in. Compared to the L, there are far fewer douchebags and princesses, which means the vibe is more relaxing. Compared to the L, the length of my commute is twice as long, which means I feel disconnected and unproductive when I ride.