Pyro, do a search as there is a thread with a lot of info in it about this game. Personally, I like it a lot. The dialogue is a little campy at times, but it's otherwise a competent RPG. If you liked FFX, you will probably enjoy X-2, though the sphere grid is removed and characters use jobs instead. Some see this as a better thing. The battles are also faster paced.
The other thing I really liked about it are the missions. They give the game more of a non-linear feeling than the first one. Scantily clad women can't be a bad thing either...