[2]: 69–71 [7]: 24 [8]: 370 [9] In 1926, a reviewer for Dziennik Bydgoski [pl] spoke positively about the book, writing: "The reader travels in spirit with the brave pilots, experiences many hardships and dangers with them, admires the magical beauty of the aerial skies, about the wonders of which people on earth have not the slightest idea.
I hope that among the readers of this book there will arise a large number of true "Gromskis" who would glorify the name of Poland with their inventions and discoveries!".
[10] It was Umiński's second novel, and the first containing a futuristic gadget (described by Polish literary scholar Antoni Smuszkiewicz [pl] as "a new type of aerostat, operating on the principle of connecting a balloon with a prototype airplane"), and thus it is Umiński's first science fiction novel and at the same time one of the first Polish books of this genre.
The novel, written during the period of partitions of Poland, contains patriotic accents (the heroes are Poles, and it is named "Polonia").
In keeping with Umiński's habits (described by Smuszkiewicz as "timidly looking into the not too distant future"), the inventions presented in the novel are relatively realistic, representing technology only slightly beyond the state of then-current knowledge (the vehicle described by Umiński was built a few years later, in 1900, by a German constructor, Ferdinand von Zeppelin, and filling balloons with safer helium began to be common several years later).