It's located in 10 minutes by their shutle bus from Narita. It's ex Rhiga-Royal-Hotel Narita. You can stay from 7000yen for their opening rate(Take-off plan) til last of May. There aren't Exe-floor right now. These links are only written in Japanese, but you'll find some pictures of the hotel.
standard 25m2
deluxe 35m2
Jr. suite 50m2
http://www.hilton.co.jp/Japan/HiltonNarita/hotel.asp
http://www.hilton.co.jp/Japan/Hilton...ooms_Index.asp