We actually went with the Kinect 1 (KCB block, though). Face tracking wasn't working on Windows until after we'd finished development. We used a tweaked version of num3ric's Skinning (Assimp) block. Assimp loaded the models, Éric's code made the data Cinder-friendly, and then we wrote up some shaders to apply rotations and render the models into our G-buffer.

To dial the relationship between the Kinect and the models, we parameterized every last detail and hand tweaked everything to get the right feel. This project might hold the record for the most parameters ever. The params GUI rendered in a separate window / context. Here is a "screenshot" of the entire GUI expanded.

http://bantherewind.com/uploads/btparams/

The raw Kinect skeleton data is a complete mess. We created parameters to remap and clamp motion ranges. We used Sampling to create filters to smooth out the skeleton and face data, as well as write a gesture / pose recognition system.

http://www.BanTheRewind.com