I can't put my finger on it but I don't find this enjoyable to read at all.. so I don't know much about readability claims here. Maybe I'm an outlier.
The line spacing is way too tight (this is line-spacing: 1). Obviously that is beneficial for ASCII-art (smaller vertical gaps), but plain text would benefit from at least 1.1 and maybe 1.2. I am not a typographer but the cap height of this font (I think it's the cap height) appears quite large, when perhaps it would be better to have a slightly smaller cap height so the ASCII-art features would work well at line-hei…
I like to squeeze a lot of info on a page, why do other people get to say "no". Sure, space out your wedding invitation, I can deal, but on the daily text on my screen, that should be up to me.
I do prefer "typewriter" fonts that are more squoze horizontally, this one seems to have loosened the ol belt a little, maybe for more "squareness".