What difference you can make to the experience of guests when working in a hotel ?

You need to provide the guest experience that you promised, and in many cases, you will have to go above and ... of guest satisfaction, it's important that you actively work to improve the guest ...

Explanation:

  this riddles' answer is library.

  the "leaves" are a reference to the books' pages that the library contains; the branches are a network of libraries that connect multiple libraries' collections, resources, and items in a system of a common database, integrating them; the branches' organization are a useful management tool for coordinating the multiple collections many libraries have.