"Main reason for your rating"... Are you kidding me?! In terms of product, you my friend literally have EVERYTHING here! An order form, estimator, contact form, any kind of form, you can design it here.
Now, about the author, this guy is a true gentleman, my own fault for not reading the manual, I have encountered an issue, I sent him an email and within 10 minutes I had a reply back! "Wait what??!" I could not believe my eyes! I have been on Envato since 2011, I have bought countless of products and the level of customer support is always the same, days until I hear from the author, that is if I'm lucky because sometimes I don't hear from the author AT ALL. So the product and the author really exceeded my expectations. The product is very responsive and the code is very neat.
I've bought this builder few hours ago and with hand on my heart I can say that it's the best form builder I've ever seen (and I'm a web dev for more then 10 years). Seriously. Let the Holy Spaghetti Monster give pasta blessing to all of the authors of this plugin.
I rate this item not just for customer support, but for flexibility, design quality and customization. I really appreciate the autor of this item because the few questions I had responded in less than a day with effective solutions. Really is a very helpful item, so many functionalities and the support is just awesome.