A big one...this is...A large improvement in comparence with Drupal 7. A very popular one too..
The module has a lot of built in CSS and tools. The elements are sometimes prefabricated into components eg name, address,..component
You can tweek the components yourself...
Add some conditions. If no children then no age field..
This is called a likert..
Draggable items to sort or order...
There are several examples. Install them. You will need them..
The module has already some list...(you can make your own)
Even complete webform templates are available.
Table view.. remark the file upload possibility. You have to set up a private folder first.
You can download the submissions... in a CSV file.
You can add handlers (=kind of rules). Here i mail to the person who filled in the form.
There is also a test environment. The fields are filled in automatically.
At last... The module has plenty of video tutorials..Waw..
So much power needs a lot of third party libraries. You need Composer to install them. Can not work with composer? Plan B. Yes!
You can use CDN to do the same thing. They do not recomend it. I had no problems with the CDN configuration, so far.
At last.. There is a honeypot security. Forms are vulnerable. Use it.
I am impressed by the power of this module and the didactical approach of it.