Takes much more than the 2 trial days to integrate, as support is in India. The bulk upload on ASIN's only works for certain plans, so you need to add one by one, that can take a long time as shopify does not have your ASIN's. The dev, offered to do it if I give it to him in a file, so that was nice.
Support is out of India so it takes about 24 hours to respond. I have no idea if this works as I am still waiting for their support to look at why it's not working for me. I will update once this is done and works for me.