When comparing MT Andale Mono vs Hermit, the Slant community recommends MT Andale Mono for most people. In the question“What are the best programming fonts?” MT Andale Mono is ranked 32nd while Hermit is ranked 75th. The most important reason people chose MT Andale Mono is:
It's easy to distinguish "0" from "O", "a" from "o", and "I" from "l" from "1".
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Excellent legibility
It's easy to distinguish "0" from "O", "a" from "o", and "I" from "l" from "1".
Pro Good font variants
Boldface variant is not too heavy while italic face is not too spindly. Andale Mono contrasts with Source Code Pro, which is very similar in the regular font face.
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 Not pure mono
Bold and italic are too wide, so it's not pure mono in combination with regular font.

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