When it comes to creating forms with calculations, there's not much this plugin can't do. I've used it to create some complex forms, including self-scoring quizzes. They all work like a charm.
The user interface is intuitive and straightforward. It took me a little while to get the hang of creating the equations, but that was because I didn't use the built-in functions. My bad!
I especially like the ability to customize the layout of the forms using css styles and html.
This is definitely a 5-star plugin! Thanks!