oXygen XML editor v 12

I have been using oXygen XML for the past 12 months and recommend it as an XML editing package. Version 12 has just been released; here is an overview:

"oXygen is the best XML editor available, with a large number of users ranging from beginners to XML experts. It is the only XML tool that supports all the XML schema languages. The XSLT and XQuery support is enhanced with powerful debuggers and performance profilers. You can use oXygen XML Editor to work with all XML-based technologies including XML databases, XProc pipelines, and web services.
Specially tuned for content authors, oXygen XML Author comes with a configurable and extensible visual editing mode based on W3C CSS stylesheets with ready-to-use DITA, DocBook, TEI and XHTML support, making oXygen the ideal XML authoring solution.
oXygen XML Editor is a cross-platform application available on all the major operating systems (Windows, Mac OS X, Linux, Solaris) and can be used either standalone or as an Eclipse plugin."