The mental arithmetic problems might have been okay if my brain hadn't been addled by years of neglect in this aspect. And you're timed on all these irritating puzzles. There is a time limit to complete the puzzles in; do it quicker than you're supposed to and you get a gold medal and the narrator calls you smug. Complete it after that and the narrator basically calls you an idiot. Fail at the observation tests, because the story chugs along at an annoyingly slow rate and you've been staring off into the middle distance and not paying due attention, then the narrator and the game unjustly calls you a loser. Heck if you don't press X to advance to the next screen soon enough you get berated also. Basically it feels like the game doesn't really like you very much.
Yes it's supposed to be jokey and jovial, but it just felt rather rude. Especially as the serious lack of anything fun in the game doesn't entertain and watching dust dance in the sunlight between the curtains becomes a much more interesting distraction.
There are 12 puzzles in each episode and no skip button to get through the more insipid conversations with whatever voice Dussek is putting on at the time. Though you can replay scenes by just pressing the square button, don't do it. I did and had to sit through the same conversation I'd just heard and that just subtracted even more fun from the no fun I was already having.
Perhaps it would be okay to check out one episode to see if you like it but it really feels like there isn't much point getting all of them. By the time you reach the last episode you don't care any more. People get killed and the puzzles you do don't seem to relate to any of the detective work you think you might really need to solve cases as the mystery of who stole from Lady Snobbish's manor, nor does rearranging biscuits with letters on them to reveal the relationship between two of the characters in Little Riddle.
And then there's the complete lack of replay value. The puzzles don't change after you complete a game and require the exact same solutions if you accidentally pick something to try again in the puzzle compendium menu. But is it any fun in multi-player? Well it lessens the number of puzzles you have to complete and it's quite good fun watching someone tear their hair out over the latest brain numbing conundrum. But imagining that the whole family will want to sit down and try to eke out some fun is completely ridiculous.
Anyway in the end, after the credits, it's revealed that in actual fact you're a bit rubbish and didn't really work out who was behind it all at all, rendering the whole six episodes completely and utterly pointless.