To be fair, I mostly enjoyed the game, so let's start with the good: the primary voice actors (Sherlock and Watson) were, in my opinion, fantastic; the music was atmospheric and generally well-suited to the evolving stages of the story; much of the information provided was relevant to the time; the pacing was decent; the conclusion was believable and didn't clash with the known facts surrounding the actual events. Moving on to the bad: some of the voice acting for the background and side characters ranged from terrible to mediocre; certain puzzles required knowledge that many players likely had to look up (ie: dates and outcomes of historic events specific to a country not involved in the story); discrepencies between dialogue and subtitles (mostly minor, some major); use of fonts that did not exist at the time. And now the UGLY: the dialogue and subtitles cut out on a key cutscene. After more than an hour combing the internet, I can only conclude that it was intentional. Nonetheless, it was jarring, it took me out of the moment, and it left me disatissfied and bloody FURIOUS.
