This extension has a big issue with the import/export, If you are planning to import 20,000 entries in one shot, the solution provide ONLY a semi-automatic import. Some fields related to cookbook and metadata and field that are not text/textarea will NOT be imported. which makes the whole import effort impossible.
When asked the question around this issue, no more feedback is provided. my advise to buyers, asked appropriate questions on the capabilities of the solution prior to buying anything.
I consider semi-automatic Import like manual import. Sucks !