I think that the guide must in one way or another be a great disappointment unless the paper is extremely thin.
I listened to a clip from the Sentai FIlmworks release of the Ueno anime. The voice for Tanaka was like that of some guy in his twenties, and that for Ueno was just bad.
Sentai Filmworks posted a clip to Instagram, but removed in the face of negative comments about the audio. And I referred to their release, not to the original Japanese.