The plugin has multiple filters. And, you can easily control which filters are active through plugin settings. For each filter, you have the option to enable or disable it, and an extra option to allow the use of filters for searches made by website visitors (users that are not logged in). This way, you can allow filter for Users only for logged in users to use.
Some filters have additional settings too. Users filter allows you to change field format, so you have the selection and multi-select lists as an option.