Thanks for making this great game... I've played it and unlocked the Good ending on first try... It's a beautiful game.
Now I'm going to unlock rest of the endings.
I've unlocked and watched everything, so I'm going to give my two cents... The good ending is the first ending I unlocked, and IMO it was the best ending...
The normal ending is well... normal, that's to be expected... But the true ending is also just normal... completely to be expected (or I must say cliche?)... It's boring and predictable... As one of the ending, sure... But as true ending? The additional good ending completely eclipse that... Not because good ending has more happier tones... But it's because it's more creative and interesting.
I kinda wish the true ending has more creative and twist... Like everything that the quill has created can never be truly erased, so Aria and the library is actually still out there... somewhere... waiting... And Clyde (and co) has to be responsible of what they created someday... or something like that.
Also, Aria's definition of happy ending is a bit skewed, surprising that she has read lots of book. That definition is not happy ending... It's BITTERSWEET ending.