I really like how clean and easy this plugin is. It makes it simple to create a professional newsletter and subscription list. The only issue I have with it is that I cannot resend a confirmation link to users who didn't get the first email. The development team says that this feature is planned, but it sucks not to have it yet.
About a quarter of my subscription list is made up of people who signed up, but didn't confirm the email. So, the resend link option is less of a feature and more of a basic subscription-list management system necessity.
I love this plugin and so does my client. I would gladly give it five stars when the resend link feature comes out.