Final Fantasy X-2 is the first ever direct sequel to a main entry of the iconic franchise. It is also a half-assed addition that is albeit not without its merits. It obviously had some great ideas going for it (primarily the combat system), as well as glimpses of what could have been if the game took an introspective approach to the story, instead of this hot mess we ended up having. But for all the good it does, there's at the same time also so much wrong with this game that it (not so rarely) feels like it was aimed more at 10 year old girls instead of the fans of the game preceding it.
Pros: Excellent music, superb and fun combat system, dress spheres and spherecom are cool additions, introspective moments in the story are really good, visuals still look good, plenty of secrets and optional content, tries to mix things up in the gameplay department
Cons: Horrible characterization (especially of already established characters), for the most part the script is moronic, reeks of low budget and laziness, the very few areas that are new to X-2 compared to X feel cheap and unimaginative, however good the dress sphere system is - it reduced the game to an RPG lite