Before anything else, I can't believe they didn't split the 62 minute audio into multiple tracks! What amateurs are making this CD!? But then, maybe that's why the sound quality is good. They weren't trained to mess it up!
The special episode features Igarashi Hiromi (voice of Hina) as a guest. Although Kitamura Eri is also featured, she's actually not there. She just gives pre-recorded instructions to the two. Come on now! I think it'd been better to just skip her completely if they couldn't actually get her to be there.
First part of the CD isn't particularly interesting, but once "Hina no iukoto wo kikinasai!?" starts, it's all good. I'd have loved to hear KitaEri try Hina, too, though.