Reviewing the first novel, Terms of Enlistment, io9 described it as sticking close to the conventions of the genre, focusing on "guns, acronyms, hard-ass drill sergeants, explosions and battles on alien worlds".

The reviewer considered the second novel, Lines of Departure, to be an improvement in that it reflected a critical outlook towards powerful, centralized government that was often absent in leading works of the genre such as Robert Heinlein's Starship Troopers.

[2] Lines of Departure was nominated for the 2015 Hugo Award for Best Novel on a slate organized by the "Sad Puppies", a group of "right-leaning science fiction writers.

[4] In 2019, his short stories, Lucky Thirteen and On The Use Of Shape-Shifters In Warfare, were adapted as part of the Netflix anthology series Love, Death & Robots.

[6] Kloos lives in New Hampshire with his family and has been employed as "a soldier, a bookseller, a freight dock worker, a tech support drone, and a corporate IT administrator".