Users dashboard provides insights on your audience.
Summary
The first widget tells you your total users of the bot till date.
The second widget tell the users gained within the selected time frame.
The third widget tells the average number of messages a user sends.
Users By Gender
This widget breaks down users within the date range selected.
New Users vs Total Users
This widget shows how many users messaged on a particular day and how many of them were new users. This is an important graph showing retention as well as acquisition.
Users World Map
Shows the location of your users. For Facebook it is calculated by the locale, so there are going to be some inaccuracies.