@Simon_e  try to use travinto.com  . Their product accuracy is more than 90% And most of the SI and GSI are using their tool. We have migrated 200K + talend , datastage ,abi initio , informatica jobs  with 90%+  conversion accuracy, I will highly recommend them. Awesome product and awesome people.

We have tried bridge product as well as but bridge product conversion was not accurate and lot of manual work needed to fix, but when we used travinto Technologies product that was awesome with minimal manual work with 90% of accuracy.