I have successfully installed the plugin in 2 sites i own.
Unfortunatelly i expirienced two problems when i activated the plugin.
1. Sites now load VERY slow
2. I use socialreport.com for autoposting on social, now this site isn’t getting the thumbnail and all posts are with my logo instead of the featured image.
I have uninstalled at the one of the two sites and i saw some diffirence but not much.
Site with activated plugin: https://gynaika.gr
Site wich i deleted the plugin: https://epikairotita.gr
All other sites on the same server have no speed problems etc.