No, I haven't used it. However, more often than not you get much more HTML than is strictly required when you let a WYSIWYG word processor create your HTML. Not only do you get more, it is also messy, as in difficult to maintain.
There are other systems that make the creation of online documentation easier. From the "good old days": FrontPage allowed you to do this. Recently I was busy with upgrading the wiki software I am using. In my search I discovered 'BlueSpice
'. This is based on the MediaWiki software and comes in a Community and Enterprise version. While not perfect, the Community version does supercharge the MediaWiki software. It makes creating/editing online content much easier. The visual editor that is included in BlueSpice has all that you need (including a content context menu) for simple word processing.
It comes by default with with an exporter to PDF (for a single page or collection of pages), but an exporter
for the ODF file format is available too (BSD license).
To make the MediaWiki software work you need web server software that supports PHP and a MySQL database server. XAMPP
is a collection of software that contains all the requirements for the MediaWiki software and more.
Caveat: XAMPP is only fit to use on your local PC or LAN, because it is setup for development of websites and not for hosting of websites. There are more than enough alternatives for XAMPP, but the warning remains valid, because these alternatives are also setup for development, not hosting.
For the record: no affiliation, just a happy user (of XAMPP, MediaWiki and now also BlueSpice).
Most people are sufficiently adept with word processors, so I do understand that people would like to use familiar software to create HTML documentation. And that they think this is a smart idea too. But if you the garbage HTML those editors produce, you will want to run away screaming...especially when you "inherit" such documentation and are asked to "clean it up".