The ease of use is great! It's easy to set up multiple users with different permissions in one place without having to go through each user individually or have separate accounts just so that you can send messages from your own account as well. There are many features but I think it would be nice if there were more templates available when creating new emails/emails attachments etc., which could also help streamline some processes where we need them most - like sending out mass communications such as newsletters / notifications about our services. We're solving problems by using this software rather than going back into Outlook every time someone sends me an email asking why their message hasn't been sent yet again.