This is FUN!
Seriously, as of a game, I think this should be the very groundbase (speaking of which, I consider linear VNs not a "game"). Keystroke is a fantastic outcome and showcase what is possible to be done following a good concept. It is a bit niché, but way very good in there, therefore: Is it for everyone? No. This is a typing game. So if you feel NOT comfortable to compete with typing skill, this game is not for you, you will not enjoy it. If you are flaky about it, I suggest definitely to try. It is a good experience!
You will face with well supplied eyecandy, softcore and ample hardcore material, via multiple playthroughs, also slowly acquiring limited number hack commands (no meta needed, this is not a literature club
). I feel a bit contradictive that you get to see more if you risk your success via the game, but... I actually find it okay with the good angle of challenges and rewards. Also, if you play smart, you can take paths that actually help tremendously, so what seems to be standard way of playing, that will have several alternatives.
Godspeed, and best wishes for future projects!