I wouldn't bother with anything unless you have 6 hours between flights if doing it yourself.
You can also arrange tours from the airport at http://www.narita-airport.jp/en/travel/tours/index.html These are, I think, all one-day tours that run from 9:00a.m.-7:00p.m. about 6 years ago
There is a famous traditional temple and a big shopping mall in Narita city. almost 6 years agoAnswered by nana via Travellr.com