I like that it is free, and that it's open-source software, so there are no vendor lock-in issues. There is also an active community of users who can help when needed. The UI could be improved for better UX overall. Sometimes the parsing fails to identify metadata properly, causing some of my documents to fail to upload. This is not too bad because most people have other files to work with rather than big data sets. It saves me time and effort by providing the ability to parse large amounts of data in an efficient manner.