The most impressive thing about Aweber is the data capture form creator.
While all sites provide a form generator they are usually very bland and basic and you need a fair level of coding skills to modify size, color and layout.
Aweber, on the other hand, provides dozens of form templates that can each be customized with a WYSIWYG editor. Copy, paste, drop and drag and VIOLA!
And check this out: once you paste the form code where you want it to be on your website, if you go back to Aweber and make a change to the form it automatically updates itself on the website. You don’t have to go back and repaste the code. A HUGE timesaver!
While all the email marketing companies put a lot of effort into newsletter templates, none puts in the kind of bells and whistles for the data capture form like Aweber. And with the monthly price about the same as iContact, Constant Contact, etc, the value and time savings it provides is PRICELESS.