This add-on is a great way to inform your user base of specific rules which may be in-place on some sections of your community and not others. Overall, it works how it is supposed to and the developer is very responsive to support inquiries.
I had an issue that made it possible to bypass the rules screen in certain scenarios fixed on the same day as I requested support. Absolutely recommend!
Please don't hesitate to get in touch if you run into any issues or have any feedback/suggestions.