Yesterday I purchased this extension to use it on a J2.5+VM2 plattform. My customer works with Caja Rural and I thought this was a good choice. The overall process took me 15 minutes (purchase the extension, pay, download, install and configure). The only problem I found was caused by a mistake in the instructions of Caja Rural. When I saw an e-mail from joomlaempresa offerin suppor for the installation and configuration, the extension was already working.
Not so cheap, but impresssive working.