We need it a place to store our luggage prior check in, we were a party of 6 people, lots of luggage and anything near by, we lost probably 3 to 4 hours in our trip trying to figure it out which is a lot when you are in Japan, the indications to complete the check in were not clear,. we did not know that we need it to use the back door, and complete the check in the 2nd floor, besides this everything was good