I watched it along with KS about 2 weeks ago. I didn't think it was so bad, but yeah, the Pixar feeling was lacking from it.
I know the focus was on the mother-daughter relationship, but I would have liked for Merida's father to be more... Well, a father, and less a comic relief. More importantly, I would really have loved to see a more memorable villain.
Ah well, at least it gave me some good laughs, and the soundtrack is great.