These guys have been working marketplaces for a long time with expertise across multiple marketplaces around the globe. It is well worth the investment of time and money, especially in the early stages, to learn how to do things the right way. The landscape is changing quickly and keeping ahead of the pack is vital. These guys have all the tools to help predict where things are moving to get you there first. I highly recommend working with Channel Advisor if you want to maximise ROI in marketplaces around the globe.