WYSIWYG editor, no need to know HTML. Built-in templates for all formats and you can create your own using HTML Template builder.
Built-in screenshot capture and REcapture. Image library helps to manage and reuse screenshots. Callout editor.
Create tutorials from captured screenshots and embed them into topics.
Store all languages in one project file. No need to maintain separate projects for each language your project supports.
VCS-friendly storage. No need to check-in entire project each time you change something.
Supports QtHelp, JavaHelp, OracleHelp, WebHelp for cross-platform help.