Is anyone using GrabCAD Workbench? Is it really up to the task of being a PDM System?

I have looked at using SolidWorks PDM Enterprise but the cost for what we need is just way too much. If GrabCAD Workbench is up to the task it might be a 'reasoinably priced' solution, but I would sure like some feedback from others that may be using it. OR another alternative(s).