I went through the trouble of installing this component, only to have issues with the adding form elements. So, I went to the fabrik support forum, which only allows download of 'fixes' if you pay to register. No Thanks. Bad business on the part of Fabrik developers; if you're going to offer a free component, you cannot expect to be paid for support unless it's extraneous, and fixes for bugs is not something I would consider to be worthy of charge.
I've installed FacileForms, and am very happy with the results. Not a fan of Fabrik, not at all.
All downloads of the core component, modules and mambots are freely available on the site, registration (even the free version) is not required.