Numbered streets vary drastically. Had a friend grow up on N 12th St just off Bloomfield in a historic 2 floor colonial with a working fireplace, original details, etc. Classic suburban family in a classic Northeast suburb. 4 blocks south, past Park Ave the vibe changes as you get closer to the freeway. Same situation as you head west towards East Orange and get closer to the Essex County Parkway.

tl;dr Numbered streets on the north side of town are very block-by-block. Stay away from the highways and East Orange and you'll be fine. Numbered streets on the south-side are a no-go.