The crossover with professor Layton is fantastic and very underrated. I'm pretty sure it's the only ace attorney game with a story that's present throughout the entire game and it's so much better for it. By that I mean that you don't meet some characters, dick around for three trials, and then haphazardly try to make everything thematic at the last second.

Though I will say that the solution to the overall mystery is dumb as hell but it's so absurd it's funny imo. It has that Layton fairytale vibe so if you're not willing to suspend your disbelief you're gonna be pissed at the end.