Pretty frustrating. To be fair a lot of adventure games have illogical puzzles but some of these puzzles required some guesswork, the algorithms for which took a very long, tedious time to confirm. I have misgivings about the quizzes. I don't think they considered false positives when selecting the evidence. And I think I was subjected to a bug, which required me to confirm w/the Universal Hint System so that I new to go back to an old savegame--very frustrating. Finally, misspellings and inappropriate letter case along with some characters saying LOO-TENANT and others saying LEF-TENANT is inconsistent w/a see-everything-miss-nothing theme.
What's good about it: music is well chosen and the interface is intuitive. The imagery added to the whole experience.