In a nutshell, the game is really good! Great combat system, challenging throughout all the game, interesting characters with a confusing and convoluted plot, tons of stuff to do post game, tons of customization of your weapons and how characters look.
This was the 2nd game I platinum'ed, the first being the easy as hell Heavy Rain. This doesn't make the game perfect in any way, but it still has a lot of things done right.
So my recommendation is get it! It should be cheap. This is a game from the Tri-Ace I know and love (unlike Star Ocean 4...)