At the nvu web editor homepage, they greet the launch of the 1.0 version of the program with these words:
Finally! A complete Web Authoring System for Linux Desktop users as well as Microsoft Windows and Macintosh users to rival programs like FrontPage and Dreamweaver.
A good and free tool to complement your text editor, or a good alternative to commercial software for newbies who don’t want to mess around with html or xhtml.
Here’s a detailed feature article with nice screenshots so you can see for yourself what’s on offer.