Even if I really don't pay attention to the rating of my plugins, because to rate something it must be used for a while... and most of the people who rates things just give them a superficial look, I hope you really want to list me where the options are confuse.
The plugin can be installed and just dragging a widget on the sidebar it works. It has a welcome page where this step is described. Ok, there are few lines of text to read... may be this is something unwanted by blog owners who want to setup a newsletter system in their blog.
Should I use my time to develop even a wizard for first time users who don't have time to read and think about what they are doing?
I'm really curious to understand what should be the steps to take to make the plugin complete (in your point of view), of course, being it free, without put on it tons of money.
ps: I'm not replying to get your rate changed, as you can see this plugin has some five star rating (I never asked for them) and some 1 star rating. Clearly there is something of strage...