Somewhat overwhelmed by the considerable number of options/features, I registered with the Fabrik web site to access the tutorials. (You'll DEFINITELY need to register to access some of the more advanced tutorials.)
The tutorials gave plenty of guidance - with a bit of humor along the way - for me to get going in a reasonable number of hours (about 2-3).
When I finally got deeper into Fabrik, I made a design decision that it was too much complexity for my application, which I wanted to keep dirt simple.
This by no means detracts from the extension. I am glad I invested the time to get to know the tip of the Fabrik iceberg, and now know when to use it in other web site applications.
Very nice! Kudos to the developers!