I really liked this game, since in principle it is a learning game, but the mechanic of typing is utilized for everything here. This way, it is not perceived as dry learning, instead it just feels better to get higher sccores and keeps longer combos. I especially liked the way the world is being build up out of pages and the art style which fits to this nicely. Negative side might be the short length (6-10 h, depending on your typing abilities and your wish to challenge the highscore in the arenas).
HLD might have been an 4,5 or even 5 star game, the atmosphere, art design and music is wonderful; the gameplay is fun and heavily focused on exploring, BUT the game has, as of writing this (2019), a bug where it slows down the longer you play. So I had to exit the game and restart it every 20-30 minutes. This is really annoying, since some important gameplay features are rythm based. And the slower pace hinders your muscle memory. (second minor problem is the invincibility time after getting hit is too small, which means some bosses can stunlock and kill you, so dont get hit...)
