When comparing Operator vs Hasklig, the Slant community recommends Hasklig for most people. In the question“What are the best programming fonts?” Hasklig is ranked 30th while Operator is ranked 49th.
Ranked in these QuestionsQuestion Ranking
Pro Has a script version
Operator can be used to mix the same font for syntax formatting.
Pro Super readable
Long strings can be read in Operator exceedingly easily. The font just flows nicely, with all the benefits of clarity that provides.
Pro Horizontal width not as wide as other fixed width fonts
You can legibly read everything and get more characters per line.
Pro Adorable italics
Pro Has a heavier appearance than Fira Code or Monoid.
Pro Great for Haskell
Pro Has many variants such as Italic, Bold Italic, Light, Semibold, etc., etc.
Pro Completely free and open source
Freely available via GitHub, therefore can be modified and improved by anyone
Con Relatively expensive
At $179, this font is on the more expensive side.
Con Roman style isn’t very appealing
Con Lacks !=
Some coding fonts with ligatures, like Fira Code, turn != into ≠, but Hasklig does not. The reason for this is that Hasklig was designed for Haskell code, and so turns /= into ≠ instead.
Con Has a heavier appearance than Fira Code or Monoid
Con No support for many editors, including emacs
Unfortunately, not supporting emacs is the number one reason I don't use this font all the time.
Con Very cute but not WYSIWYG
You want to see exactly what you've typed, not have your brain have to do a little dance every time you see one of these artifacts.