Ecomdash and shipstation?

Hey all.

we use ecomdash for inventory management, kit building, built product building etc. We have multiple brands, on multiple marketplaces. 

We want to use shipstation for our shipping. But we are not sure if we should connect ecomdash directly and port the orders to shipstatation or if we should just connect each individual marketplace to shipstation. 

Neither shipstation or ecomdash could really help.