Inventory Source drop ship module
 

I received a marketing email from X-cart promoting this new drop ship addon for X-cart. I checked out the vendors available and have some interest in trying this. The full 2 way integration will load inventory, sync qty's, send orders to the drop shipper and get tracking info in return with no investment in inventory. $150 a month for 1 feed.
Sounds too good to be true....
So, does anyone have experience or an opinion on this type of business model and is the integration with X-cart tight ?

Thoughts or opinions will be greatly appreciated !

Thanks as always