When comparing Envy Code R vs Bitstream Vera Sans Mono, 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 Bitstream Vera Sans Mono is ranked 69th. 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 Compact
You can fit a lot of text on the screen.
Pro Font proportion is perfect
Width is just right (not too narrow, not too wide). Many other fonts lack this.
Pro Smooth with antialiasing
Smooth at small sizes while still clear.
Pro Readable at small sizes
All characters are easy to recognize at small sizes (comma, period, etc).
Pro Easy to read
This is subjective but this font is very easy to read. The letters are all spaced and sized properly.
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 Line doesn't cover text right
When using Neomutt or htop, the line drawn over is too low - the top of the characters cut into the top of the line.
Con "mp" clump together with smaller sizes
E.g. in "The quick brown fox jumps over the lazy dog".
