I agree with Zack that it didn't look very good. The style was on the generic side, without much charm, and technically it lagged behind big games like Galaxy and Skyward Sword. On the bright side, I think the new game has improved character design. Like the first game (and seemingly reusing some of its assets), the backgrounds are more impressive in their complexity and attention to detail than in their design.
Regardless, I am much more excited for DKCR than for Mario 3D. The tables will turn when Nintendo shows the next marquee Mario title.