I have the Pixel grip on my D800. On my D7K I have the Nikon grip. This may sound like blasphemy, but I have to say that Pixel grip actually feels a little better in-hand than the Nikon grip--the rubber on the Pixel feels a little heavier. So far I have been pleased with the Pixel grip and like its sturdiness. However, I do have one big complaint, and that is that neither the RRS or Kirk L-Plates on this grip allow you to open the battery door when using this grip. The Pixel is sized just enough differently from the Nikon to make that impossible.