I've managed to get to the end. It's a mixed bag, I believe there's a market for that, people do like a good detective story, but in my experience this very audience detests puzzles forcing you to bruteforce solution, or succumb to moon logic. There's no telling which objects are interactable which forces you to press space next to any object that's not wall - computers, books, npcs. I've managed to solve the bomb puzzle, but checking all those chests once again to find library card was not very intuitive.
Invert - it was such a peculiar thing, I do think that idea of learning detective skills from books is great, but why did we unlock 'Invert' as a Testimony and question? Maybe there could be a collection of techniques you learn through the game and can use on testimonies, questions and evidence?
The general idea is great, but it certainly needs work.