Great functions, the component is very complete and has all you need to manage a directory.
Ease of use
Sometimes easy to use, sometimes complicate to understand the logic of the setup
They use Joomla as website, Kayako for support, paytoolbox for payment AND perhaps support as they are possibility to open ticket on both :s
Not bad, but not great too and support take long time to answer (when they answer)
Value for money
The extension is great but support has really a lack of quality and the setup is not without difficulty.