Saw it the other night, and it was pretty much what I thought it would be. It kept me on the edge of my seat the whole time, the twists were great, and it was overall just damned awesome. But I still liked The Illusionist better because, as stated, it had a much more understated, simple quality. Prestige was really gung-ho, came out with guns blazing, all that. Which isn't a bad thing, I just liked the story-like quality of The Illusionist better.
However, watching Scarlett Johansson prance around in her little show outfits was... very nice. That alone makes the movie priceless.