When comparing PT Mono vs Hermit, the Slant community recommends PT Mono for most people. In the question“What are the best programming fonts?” PT Mono is ranked 14th while Hermit is ranked 75th. The most important reason people chose PT Mono is:
PT Mono uses slashed zeros and a rounded lowercase "L", while all numbers are easily distinguishable.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Clear characters
PT Mono uses slashed zeros and a rounded lowercase "L", while all numbers are easily distinguishable.
Pro Crisp on display
No pixelation on high pixel density displays.
Pro Clearest parentheses/braces/brackets
You will read ({[ something like this with PT Mono smoothly on screen on any size and quality.
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 ligatures
Con Lower t stem is short, too similar to lower c
Preferentially, lower f, i, r, have feet, however fortunately lower l (ell) is tailed.
Con No Greek letters

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