Wadia iTransport and CIAudio VDC-9.0 PS Upgrade

Does any have any experience with the CIAudio VDC-9.0 Power Supply upgrade. The outboard PS is described as: "making a shocking difference to the performance of the Wadia iTransport" ... and ... "VDC-9.0 is not a subtle upgrade". Just curious if anyone has an opinion on this or any other PS upgrade for the iTransport?