mantis network

Does anyone use Mantis Ad platform? How good is this network and obviously their pay? And do they pay regularly, does someone faced any issues with their payment? Thanks

I have a facebook page in the weed/stoner niche with 70k highly engaged followers who are mostly North American. I have set up a viralnova style cannabis themed blog site on Wordpress and plan on generating content monetized with display ads and then blasting it out on my Facebook page as well...