They are decent but lack some information. Here is a recent email I got back regarding some questions.
Q: Does YoYotta back up alias’s? (not the linked the file but just the alias. I personally use those as place holders for files that have been completely archived.)
1a) I see the alias listed in the PDF, but not in YoYotta database so I don’t know how these can be restored.
A:) Only media and metadata files are stored in the database. So you would restore either the whole tape or a folder.
https://yoyotta.com/help/restoreLTFS.html
Links are backed up. Unless Copy linked files is turned on in Preferences.
https://yoyotta.com/help/preferences.html
Q: I did a restore and it copies one file fast. Is there a way to make sure YoYotta restores sequentially from LTO tape? So that when I restore lets say 5 TBs from tape at once, YoYotta is not FF and REW the tape constantly to do the restore?
A:) When restoring folders are sorted into order, so the restore will be quick. We expect files inside folders to have been written in order.