Oh, it's only about 7 months since the game came out, but I actually have finished it.
I had a lot of mixed feelings in the start of this game, but in the end it turned out to be a great game, even if not as amazing as the previous two entries in the series.
Oh yea, watch Zeropunctuation's Review of Super Paper Mario.
He says the same things more or less, just a whole lot more clever...er.