wiki.js has many nice functionalities. Only thing I feel is missing is better site tree structure than the current one.
It would have been better if the home page had been a list of recently published or recently changed articles that user has access to.
In the menu structure on the left there should be a page structure where e.g. Home Page (article) is located as a button at the top, then categories (folders)> subcategories (subfolders) and finally a link to the page (article).