This script has really helped me out. I've tried several different scripts which claim to be "easy" for non-programmers. This one actually is!
A very flexible and intuitive interface which enables an easy build of the form. I mostly build Joomla sites and it was easy to integrate, using a wrapper.
Regardless of the quality of a Programm, for me it stands or falls based on the support. And in this area, I've never met better! Whatever the problem, They help until it's solved - and fast! Get it!