Formidable is 1) very well-thought-out to be easy enough to use while providing sufficient breathing space to customise and add deeper coding and 2) its stand-out feature is the quality, care and consideration taken with forum advice. Pretty much every single entry on this forum gives some useful information and is politely given. I have purchased a number of premium plugins and the support varies wildly; this is the best money I've forked out.
I LOVE that you can use forms to create content. Awesome, awesome work! Formidable Pro has totally changed the way I think about how to use WordPress. For the first time ever I can see being able to use WordPress as database.