Right now it is just hooked up to Google's sample data. None of that data is for a real site.
And ignore the Google Ads page. The page works if you hook it up to a real Google Ads account. I'm not sure why it is not working with the sample data. If you are familiar with Google Data Studio, you can grab it and hook up your own data to see.
If you do grab it and use it, just know that for the Search Performance area to work correctly, you need to hook up both the URL and Site versions of Google Search Console as data sources.
What else would you find useful in a report like this either for yourself or for clients?
There are some layout issues with some of the headers in columns or data getting cutoff. That will be fixed before I finish it. Right now I'm just interested in feedback on anything that might be missing to make this template useful for you.