There are no setup steps for plugins itself, but you need to set up each service you would like to use.

Current available services:

Note: You do not need to set up all of avaliable services. You may choose some of them you would like to see in your project.

After you are done with the services setup, open the plugin settings:

Window -> Stan's Assets -> Unifayed Analytics -> Edit Settings 

and enable desired analytics services as showed on the screenshot below:

Now you are ready to add analytics Impementation to your project.