I integrated e-junkie with my web site. E-Junkie is a great product.
I have the following suggestions, based on my experience:
1: E-Junkie is sending mailing_list_status twice in the post back. This is creating an issue when I save data to my database. I have a work around for this, but letting you know this issue.
2: I use Norton Vault (when I store my encrypted passwords) which auto populates the user name and password for the websites I visit. Ejunkie does not support this. It will help if you support this feature. Most modern websites do.