I like that it's easy for me as an admin user (no coding required)to set up rules in zones so they can be used by other users who are not technical enough or don't have access rights yet - this is very helpful when you need someone else with less experience but still able do what needs doing! It does require some knowledge of how DNS works which isn’t always straightforward at first glance- however once we figured out exactly where our issues were coming from then things got much easier!! Not really anything specific about zone ranger itself although there could maybe perhaps possibly even better documentation? Maybe also make sure your firewall allows port 53 UDP/TCP open otherwise will get errors etc.- if anyone has any suggestions please let us know :) We needed something simple & quick way without having too many people involved into setting everything back together again after problems arose later down stream:-.