Hi there,
to be honest, i never heard of this before, and i had a search of the support forum, and this is the only topic relating to that plugin. Which could mean no one is using it, or more likely no one has had any issues with it 🙂 You could take that as a positive sign.
I had a quick nose at what the plugin does, and the standout option seems to be it uses CPT to ‘store’ external and locally stored adverts for placement in your site.
Which i could imagine would be handy if you’re managing a lot of adverts.
But if you’re just inserting ad scripts like Google Ads then the free AdInserter plugin or the Hook Element in GeneratePress may serve you just as well ( and for free )