This particular review is of the PC version, specifically the Deluxe version.
First of all, it's clumsy and repetitive. Once you get past that, it's not the worst. The music is decent, the graphics have a certain old-school charm, and it does teach you things. The voice acting is the epitome of so-bad-it's-good. Overall, for a 1993 edutainment PC game, it's clear the developers tried.
Beware of a weird glitch that may happen when running the game on DOSBox; the first door will trigger a memory-related error. To fix it, you have to edit the DOSBox config text file: change the memsize from 16 to 1. Once you beat the level, you can change the memsize back to 16.