There’s plenty of questions about ZFS in the show that get answered, that’s always a given.
I’d say their opinion on “ransomware being a backup problem not a security problem” was enlightening and their backup opinions are also interesting (Push vs. Pull, ZFSes snapshotting, etc.)
Allan’s experience in FreeBSD is welcome too, not every day you get to hear about FreeBSD in prod.
They both skew FOSS too but not in an idealistic way, it’s based on decades of experience.