There are various shops. Anyway, the app is conven...

There are various shops. Anyway, the app is convenient and recommended. You can see where you are on the floor and how many floors you are on, so you don't get lost. You can also earn points.
The signboard inside the building is also monitored, so you can see how many floors the elevator is on.
I like Tsujiri and Ishiya Confectionery and use it often.