I wouldn't call it "really good".

You'd be better off picking one of NIS's *real* games. (NIS published Atelier Iris in the US, but Gust actually made it)

I highly suggest Disgaea, Disgaea 2 (which isn't out yet, a couple more weeks), Phantom Brave or Makai Kingdom. All these are NIS games, and excellent 2D RPGs for the PS2. If you can find them.