I'm a bit slow at typing since my native language is not English. I have to look down at the keyboard and I type with my index fingers only (a terrible form I know, I'm working on it!) so I played on the easiest difficulty. I found it be adequate even for me and with time I caught on to the fact that the timer was forgiving enough for me to take my time typing carefully.
I'll say the font was a bit of an odd choice. While pretty, some uppercase letters were a bit small and could be confused for lowercase, not to mention the one semicolon in the game was almost invisible, and right at the end too! It could be frustrating for someone who isn't used to formatting their numbered lists like that to suddenly see their timer penalized for missing a character that they can't quite see. I found 2 typos near the end but that's a minor issue. My only comments are that it could benefit from having some sort of sound when the player types in an incorrect character for those of us who have to look down at the keyboard, and that some of the typing boxes were quite long, so a pause button could be nice in case something comes up in the middle of the play session. Lastly, the web version didn't pick up my apostrophes, which was odd, but the desktop one worked just perfectly.
Otherwise, this is a really neat typing game, pretty art and music, definitely appeals to specific kinks beyond what's common, and it's built solid, overall a nice experience!