Disappointing. I guess it was mildly entertaining, but I'd heard many good things about it, and must have been oversold. It was simplistic and formulaic, and the little incidents that were supposed to show what a brainy little wonder the "Blonde" was were unconvincing and, if anything, demonstrated that she was just an extremely lucky airhead.
I laughed, several months ago when this movie came out and a few Harvard law students objected to it, but now I sort of understand where they were coming from.