When comparing DEC Terminal Modern vs Operator Mono, the Slant community recommends Operator Mono for most people. In the question“What are the best programming fonts?” Operator Mono is ranked 39th while DEC Terminal Modern is ranked 78th. The most important reason people chose Operator Mono is:
Operator can be used to mix the same font for syntax formatting.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Great looking retro font.
I use 18-point DEC Terminal Modern for interacting with OpenVMS systems, with anti-aliasing and subpixel anti-aliasing. With a dark background and a soft white, amber, or green foreground, it's very reminiscent of the physical terminals, though I don't actually have one for comparison.
Unless you want an ultra-retro "rasterized" appearance, I would recommend it by far over either "Glass TTY VT220" or "VT220-mod".
A very slight "con" is that it doesn't work well with at least some of iTerm2's built-in Powerline glyphs. Spaces appear as filled blocks, for example.
Pro Interesting look
The look of DEC Terminal Modern is somewhat retro-inspired.
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
Cons
Con Relatively expensive
At $179, this font is on the more expensive side.