It states clearly it goes to Peninsula Hotel.

http://www.limousinebus.co.jp/en/pla...hes/index/2/64

- it is unlikely that you can catch the 16:20 bus with a 3:20pm arrival , but who knows

- Peninsula bus is hourly departure. Concierge probably knows their clients value time more than anything else, hence suggesting the Tokyo Station bus which departs every 15 minutes http://www.limousinebus.co.jp/en/pla...hes/index/2/11

- Advantage of bus: door-to-door, luggage loaded onto bus by attendant, offloaded at hotel by hotel porter at curbside

- Disadvantage of bus: slow, traffic congestion, narrow seats, little overhead luggage space, no washroom(I think)

- Also Narita Express train is 50% cheaper at 1500 with the special fare