I"m from North Jersey and do shoot in OB and CJ a lot. Our new anti gun governor have a few more laws he plans to implement so I would just say be careful and pay attention to the laws in NJ. Right now, its 15 rd mag capacity.
Central Jersey is a very nice range, nice stages and I've had nothing but good experience.
OB - if you can get past the attitude of the burnt out crew that runs the match (a couple, not all), its nice stages as well. The static steel matches and knockdown steel matches are awesome too.
Ontelaunee - to me, one of the best places I have ever shot at! Unfortunately, it seems they are cutting back to Sunday only and will allow a very limited reg number so match will sell out in minutes. Their matches use to be10 stages minumum.
Lower providence- has nice stages and lots of nice people
I would go to youtube and watch some videos so you can see the flavor of each match.
You cannot carry a firearm in NJ unless you have a permit, It must be in a trunk in a container (preferably locked). Please don't make a mistake as others have done. Other than that, we do have good places to shoot so dont be scared. Just follow the laws.
This is my 2 cents.