Thanks for waiting, this is how PS4 digital sharing works, and more - PlayStation®4 FAQ - PlayStation® http://t.co/d8RD3pQhpb
http://m.us.playstation.com/ps4/features/ps4-faq/
To summarize, you may designate 1 ps4 as your primary console for your PSN account, you may play your downloaded games and enjoy the benefits of your PS+ subscription on all the other accounts on this primary system. You may also use the remote play feature from your primary console.
You may download, play games and enjoy PS+ on an unlimited amount of PS4 consoles other than your primary console as long as you're signed in and only from your account.
You may play games and enjoy PS+ simultaneously on two PS4 consoles: the primary one and another alternate console with your account.
