@lucas:
(...) but I still found it difficult to get my head around how to set up the module correctly for loading/updating content.
I agree, the learning curve is quite steep and better tutorials are much welcome.
But after some trial and error it is clear now for what I want to do and I am using it successfully to add/edit large numbers of pages every week. It’s definitely a great time-saving module!
For me, it has been a time-loosing module, but I’m sure it can be time-saving.
In many cases, I find easier to export tables using phpMyAdmin, do some search and replace and re-import. I also re-parent documents from within phpMyAdmin when necessary.
For small changes, the "Doc Finder" module is also much useful and allows to perform "Search and Replace" from the MODx backend.
But I’m aware that fast_content_csv is unique to perform larger database updates.