Need reference for Inventory Module/Cost Accounting in Sage 100

We are considering purchasing this module to use for a new manufacturing division that is schedule to open soon.  I was hoping to get some advice on how the installation went well or poorly for your organization and whether you would recommend the purchase.  We are primarily a service organization, this will be our first experience in cost accounting.  If anyone would be interested in a quick call, please email me at [email protected].  It would be much appreciated.