I tried Xanadu but got stuck early on. I should give it another go soon since it seemed kind of cool.
Trails of the Sky is different from their other output in that the primary focus is storytelling. The story is good if cliched and simple, but it's also more about being bright and cheery with occasional moments of darkness. Just a bit of a warning if you're going in from their darker more action-ey routes, as this is a straight up turn based j-rpg, albeit with a semi-unique and engaging battle system.