Mad Mimi has the most friendly interface in all email marketing niche. It's easy to set up in minutes. It has a personal touch feel to the emails that customers seem to like very much. The price is another interesting feature,
It's perfect for people who are starting or don't have the need for custom segmentation or advanced analytics.
It does not escalate well. There is no way to have a decent or automatic user segmentation without having to contact support.
You can't have two or more list with different user without setting information for the whole account. You'd need more than one account to keep them entirely separate.
Also, and this is ridiculous, if you start an automation you need to ask the support to not send it to the active users. This should be an option in the dashboard.
If you want to set-and-use, just to send emails, go for it. The interface is awesome and intuitive, the price is amazing. If you are starting now this is the thing for you.
I truly believe it has a WHOLE LOT of potential, but they need to add more features that the competitors have like segmentation and better automation, choose something else.
It allowed me to import my users from MailChimp and start sending emails in less than one hour. There were no requirements or tickets that needed to be opened to get me started.