So far. so good

Very good plugin, does all it is claimed to do. It would be better if it could handle custom fields on the registration forms though.

Edit: Later version handles custom fields, and one can use Contact Form 7 to create a more flexible registration form, so that is sorted.

Now I need to be able to add attachments to mails, and better subscriber management, especially the ability to do bulk updates by re-importing a file of subscribers. Things like adding first names, etc.