I like how their official tutorial video shows all the raw ip commands and then shows their wg-quick configuration script. That way you understand what the script is doing and what commands its running.
One big limitation is that it cannot bind to a specific IP address. The author states it shouldn't matter because it won't respond without the right auth key (and it doesn't support TCP so people can't tell if it's sitting there listening) but I found I did get into weird routing loops where packets will come in on one IP and go out on another one. The primary outgoing IP is what shows up when you run `wg show`.
It is super weird to implement a brand new service and have a config option for the port, but not the IP address(es) to listen on.