How much you get out of Cindered Shadows will depend largely on what you enjoyed about Three Houses. If you want further exploration of Garreg Mach and Fodlan’s histories, a few new playable characters and classes, new facilities for your main save, and a concentrated dose of Fire Emblem; it does its part and then some. However if you were taken in by the multi-faceted narrative and freer customization of Three Houses, or expecting more on its cast, then you may walk away from Abyss disappointed.
Thankfully, the spirit of Pokémon (of catching and collecting these monsters while aiming to be the very best) is alive and well — perhaps more than it’s ever been in a single pair of games. It just comes at the expense of pushing the franchise forward in other areas.
If you haven’t tried Layton before, you could do worse than giving Layton’s Mystery Journey a whirl, considering you’ll get at least a couple dozen hours out of the experience. But if you’ve already played through Katrielle’s quest once, then this is a port that you can safely skip over.