I have a webpage built with Hueman and Nimble Builder (both Pro versions) and it’s quite operational, only minor issues with them ( santonews.com ) – also personally, I do not find the documentation poor.
However, I am planning to move to another theme/ page builder soon, because of potential security issues.
It might be operational, but for how long?
Actually there’s errors on the demo pages of presscustomizr.com, I wish this would happened several weeks ago cause it would prevent me for wasting a lot of money.
If you look at other page builders documentation, you will see the difference.
I will now move to Divi as soon as possible, there you have guaranteed support and a vast amount of documentation and guides and examples and so on.