The interface is not intuitive at all. Trying to find a way to change the subject line in our email, we had to drill down through "collectors." (FYI: "collectors" is the email list. Yeah, new to everyone in my company, too.)
Then, when I did change the email subject from the default to something interesting, it went out with the wrong subject line. Their customer service responded immediately, but were no help whatsoever. They forwarded it on to Technical Services... but the email still went out wrong.
If there's a way to make the initial email more interesting, I never found it.