We are continuously improving our APIs to meet your expectation and produce the same result as MS Word 2013 does but it will take some time. Not all areas can be improved at the same time however we prioritize issues based on the customers' requests.
If we notice any issue in a PDF and log it and it gets resolved, it will be useful for us and for some other customers but may not be useful for you as every document can have a different structure. If you feel two documents have same issue and we resolve that issue, it is possible that the issue seems resolved for one document but not for other document depending upon the nature of documents.
It is better to share your input documents and issues to help us prioritize your issues and resolve them earlier and according to your expectations. Please share your input documents to reproduce the issues and let us know if you still have any confusion.