I almost never have to mess with it once I got it running. Very occasionally I have to turn off blocking for a minute to access a website that is being served by an ad server, but this is easy. There is a web interface that you can use on your phone web browser with an option to pause blocking for 30 seconds or 5 minutes.

It has never broken or had a bad update or something and blocked my whole Internet. Good reliable set up and forget software. Been running it for years.