Not as consistent as the first game. Has some way more cryptic puzzles, and a few of them that require a lot of guesswork and assumptions in order to progress. Not everything is solvable in a natural way, and some cases develop purely by evidence that the player has no access to. I will say the last case is very suspenseful throughout and justifies its longer playtime much more than the other cases. I would recommend using a guide to avoid some headaches.