When comparing Envy Code R vs Hermit, the Slant community recommends Envy Code R for most people. In the question“What are the best programming fonts?” Envy Code R is ranked 23rd while Hermit is ranked 75th. The most important reason people chose Envy Code R is:
This font offers very distinct programming characters that help differentiate the following clashing pairs: {} vs. (), "0" vs. "O", and "1" vs. "l".
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Clashing characters are easily distinguishable
This font offers very distinct programming characters that help differentiate the following clashing pairs: {} vs. (), "0" vs. "O", and "1" vs. "l".
Pro Easy on user's eyes
Envy Code R is quite narrow (like Anonymous Pro) but at the same time squarish. The letters are easy to read and offer a pleasant reading experience.
Pro Fills out the space well
Envy Code R also fits more into a given width when compared to Source Code Pro.
Pro Bold font is the same width as the regular weight font
The bold version has the same width as the normal version which is useful for syntax highlighting.
Pro Good design
The design of Hermit is clear and legible.
Pro OFL licensed
This means that the font is free and open source.
Cons
Con No Cyrillic glyphs
There are no Cyrillic glyphs in Envy Code R which may be an issue for Russian users.

Con Lowercase "w" is distracting
The lowercase "w" is a bit distinct looking due to the narrow nature of the font. This could cause a distraction to some users.

Con Bold weight has larger width & height
Makes mixing bold/regular weight cause un-even spacing
https://github.com/pcaro90/hermit/issues/5
