I was previously unaware of this particular text; I came across it recently by accident.
The editor, H J Anderson, , writing in 1908, would perhaps be disappointed that his attempt to bring this book into the classroom appears to have failed.
I think the main reason is that the vocabulary is too wide ranging to make it an easy read - unless a student has first studied some Comenius.
I am currently recording it for Latinum. My reading of the first section is here:-
https://www.patreon.com/posts/mundus-alter-et-10586108
Anderson’s student edition of the text is here:
https://archive.org/details/mundusalteretid00andegoog
Mundus Alter et Idem, from my own inspection of it, seems like a useful text for Latin students who are good enough to read Caesar, and who are looking for additional material to read of a similar level of difficulty; the editor suggests it is a useful text to expand the area presently occupied by a handful of authors, such as Eutropius and Caesar, who wrote in a simpler classical style.