Which Piping Material Management Software to select?

Hello, I am currently working with an EPC company, which is interested in buying a Piping Material Management Software´s license. We are studying right now six of those ones we could find information at web.

These are: Puma5, QMS, SmartPlant® Materials, VPRM, Piping AutoTrack and, Bentley Data Manager.

If someone have the knowledge about some of the software we are studying please tell us your story, information or any experience with them, so we can have an extra basis for a final selection.

Besides if you know another one, please, tell us about.

Thank you, and hope to hear soon of you
CY