Perhaps the ultimate Form Generation tool you wil ever need.
Out of the box is very useful. Simplicity at its best.
But the simplicity it's only for the final user. From the inside is a giant piece of pure awesomeness. Lowly opinionated, very extensible. A very complex piece of software very well done.
Each and every detail is taken care by the developer.
Have nothing to say but good things.
If you try to pimp it to the extreme you will obviously find some bumps on the road. But there's a lot of freedom to extend and customize it to your needs.
This is a professional tool for professional users who want to save time and do not want to reinvent the wheel. You will make the most of it if you know the basics about forms and web technologies involved. You don't need to be an expert, but is not definitely for someone who is learning to copy/paste code from w3c schools and call him/herself a "developer".
If you think you will get the most advanced form in the universe with zero coding. Stop looking because that won't happen, nor here, nor everywhere else. You will need to at least load the form in your own page using code wether you use self hosted tools like this or SaaS solutions.
The drag and drop form builder migh cover like 90% of use cases for very basic forms with nice eye-candy and validation. The real power is that it becomes a great aid to set very good foundations for an advanced work. Will generate the code to customize and hack to your most advanced needs.
Like every technology is best to know the surroundings and read throughfully the documentation.
There's no perfect piece of software (and will never be) there will alway be room for improvements, more features, and surely you might find bugs.
Support is second to nothing. You leave a message to the author and you will get a reply almost inmediately (taking account time zone differences).