Yeah Disgaea 2 never really grabbed me. I quite liked Laharl from the first, and suddenly here's this standard J-RPG hero type trying to save his village and saying THATS NOTM Y STYLE. I think they might have been trying to be ironic with the whole 'stock hero' thing maybe but whatever. It just seemed kind of boring.
And I mean the gameplay is practically the same as the first, so story and atmosphere was really all there was to compare it on. There were a few new systems but IIRC (it was like two years ago that I tried this...) not that many, and they didn't really seem that interesting...
But yeah, I guess if you desperately wanted it for PS2, then this is pretty good news.
nevertheless i am still really enjoying disgaea 3

edit: also i think it might have actually been 'that's just my style'. just so you know