Email Subscribers–basic, works

Email Subscribers does what I want it to do–it provides a subscription form along with authentication of the email of the subscriber, it allows me to format and broadcast an email to a list I select, and it tracks whether the subscriber has opened the email.
I’m still exploring the use of templates, that’s not intuitively obvious to me but I expect the templates and shortcodes will make my life easier once I have a chance to read the documentation.