Ranked in these QuestionsQuestion Ranking
Pro Zero distinguishable thanks to protruding slash
The zero really stands out and looks quite different from zeroes in most other fonts. The addition of the slash means you'll never have to second guess if that character is actually an "O" or if it is a "0".
Condensed and, even to a greater extent, narrow versions allow for compact lines without sacrificing readability.
Pro Practical yet stylish
Anka/Coder has just the right balance between style and readability.
Pro Open source
Because it's open source, Anka/Coder is freely available to anyone.
Con Some characters aren't distinguishable from others
This is especially the case with the colon, which is barely distinguishable from the semi-colon.
Con Not quite as charming at sizes of 10 and 11 pt
There are some hinting issues at these sizes: upper curves are bent sharper while the lower look is squashed to the baseline. Also, the dot of "i" appears merged with the stick at 11 pts. At 9 pts, the font looks good again (nice for watches, compiler output, etc).