No, it's not recommended for coding; it's a display font, to be used for headlines, titles, and the like, things where you want a little bit of stylistic flair. Here's the description from the link:
About
Space Mono is an original fixed-width type family designed by Colophon
Foundry for Google Design. It supports a Latin Extended glyph set,
enabling typesetting for English and other Western European languages.
Developed for editorial use in headline and display typography, the
letterforms infuse a geometric foundation and grotesque details with
qualities often found in headline typefaces of the 1960s (See:
Microgramma[1], Eurostile[2]), many of which have since been co-opted by
science fiction films, television, and literature.
Typographic features include old-style figures, superscript and subscript
numerals, fractions, center-height and cap-height currency symbols,
directional arrows, and multiple stylistic alternates.
[1]: https://en.wikipedia.org/wiki/Microgramma_(typeface)
[2]: https://en.wikipedia.org/wiki/Eurostile
