I guess we agree in that this is a product with a very steep *initial* learning curve due to its unusual approach. Still, the documentation under the Help menu is just a reference, it doesn't contain the User's Guide (http://www.xmlmind.com/xmleditor/_distrib/doc/user/index.html). I think that an as little thing as adding a "User's Guide" menu item (or better, a "Getting Started" menu item -- who cares about the installation procedure and like when it was already done) directly under the "Help" menu could help many potential users to get through that initial shock, rather than becoming frustrated quickly and try the next product on the list. Most users who are not some kind of company decision makers certainly will not look for further help elsewhere. (I guess that it would be even worthwhile to invest into creating a new, more effective kick-start tutorial, maybe even aggressively pop it up at first start.)
-- Best regards, Daniel Dekany

