Refreshing after Miracle Mask left me with a sour taste in my mouth. Azran Legacy refines everything that Miracle Mask did extremely poorly. It has more interesting locations, a better overall mystery, better puzzles and the performance is significantly smoother. It's a bit more of a MacGuffin quest than most Professor Layton games, but I found myself having a good time with it. I might even say it's a little underrated.

Edit: I'll echo the sentiment that the mess of plot twists at the end is pretty bad. But outside of that I don't think the plot is too bad.