Ozlink for Sage 100?

I am evaluating how to simplify the handshake between our front office and our shipping department.  We use UPS Worldship for many of our shipments, and UPS recommended a middleware called OzLink to pass data between Sage 100 and Worldship.  It seems promising, but I'd like to get some confirmation before moving forward.  Does anyone have experience with this middleware?  Is it worth the price ($99/mo)?  Any problems with it?  Thanks!

Cody