^ Ayesha, rather the Atelier series is a bit of a tough thing to reccomend.
I think if Gust spent another...maybe few weeks or a month to polish the games, they'd be bumped a full-letter grade. And while the alchemy system is extremely well-done and incredible in-depth, too much of the rest is somewhat sloppy (music and artwork aside).
Since Rorona, the graphics have gotten exponentially better. But, and in Ayesha, there are about 10 variaties of enemies and I think only 3 storyline bosses (so yeah, the rest are enemies and harder versions of those enemies as "area bosses"). The game is also dialogue-heavy, which is good if you love light-hearted anime, but bad to the rest of the world because the "quality" of writing (rather lack of) makes cutscenes a drag and the characters as 3D anime tropes.
There's also a lack of direction in the games. Of course, Ayesha is the most lenient of the [traditional-style] Atelier games.
If you can excuse that, I totally recommend it because there are few games quite like the Atelier series that really exist.