I noticed that there were a lot of 1 star ratings. Reading the description, FAQ and et cetera I thought those were unfair.
The plugin does exactly what it says it will do, exactly how it says it will do it.
TO many people install plugins willy nilly and expect them to do everything perfectly with no user interaction. It is a failing with the WordPress community that they market WordPress as almost "Fire and Forget" and that's just not the case. You MUST read the description of each and every plugin you choose BEFORE you decide to use it.
Yes, this plugin could benefit from a Settings page but the fact that it doesn't have one is no reason to say it sucks or doesn't work.
Anyway... It's actually pretty simple to use, and if you don't change positions or names all you have to do is upload your images to the folders and BAM, you're done. Just as easy as it would be with a Settings page.