I have been using this plugin for a couple of weeks and am very happy with it. Gamifies the opt-in process and looks nice too! But the amazing thing has been how responsive the developer, Maarten, is. He has implemented 3 of my suggestions already and pushed out an update basically the same day! Highly recommended!
I just bought a license for this amazing plugin!
Very user-friendly, easy to use and setup, and the perfect way to engage new subscribers!
Highly Recommended!