Number of cashes
Every town in NJ has nice parts and bad parts. North Jersey rents typically run higher- there are some great short term leases in Hoboken & Jersey City but those can be pricey. The nice thing is you are close to NYC and nightlife. South Jersey is cheaper-- the Edison area (I think it's Exit 8 or 9 off tpke) is nice. I was also a fan of the Bound Brook area which is relatively cheap. As a whole, I'd try to stay out of Trenton unless you do your research and if you are looking into Morristown/ Parsippany area just do a search on the zip code. There are some shitty parts there but also some very nice ones as a lot of businesses set up shop there. Mt. Olive is nice too but it's in bumble fuck.