Sure, it works but it is lacking basic customizability features you would expect from such a plugin. I would like to see shortcode functionality to add forms for different lists on different pages. A spot for custom CSS would be great, and it seems like a no-brainer that you should be able to modify the title of the widget... I tried this plugin for five minutes, but quickly uninstalled it. I'm still looking for the right solution for integrating MailChimp.