I have not been to the Harrison area in a long time. Its has some nice areas, but also not so nice areas, same goes for newark. If you guys are coming up a day earlier on the saturday, my suggestion is to stay in Hoboken. Its a very nice area with tons of bars and restaurants, and tons of action going on, especially on a Saturday. From Hoboken, you take take the Path Train into Harrison, which takes you about a block away from the Stadium.