The Sunday Morning Linux Review crew has reviewed Tarsnap Mastery in episode 148. From the review:
“If you use any nix-type system, and need offsite backups, then you need Tarsnap. If you want to use Tarsnap efficiently, you need Tarsnap Mastery.”
The whole episode is worth listening to, but the review itself starts about 1:27 in the unedited video.
They also review me as an author. All I can say to that is: “Eeep!” Fortunately they didn’t review my personality, so I come out okay.