IGN: "It has been a long time since I first saw the Onza, Razer's professional-grade Xbox 360 controller; though it made its debut at CES 2010 and has made appearances at a number of tradeshows since, it has only now been finalized for production. So, what's changed over the last year and a half? Quite a bit.
The resistance adjustment mechanism, which allows users to manually adjust the tension of the analog thumbsticks for either more rigid or fluid motion, has been significantly improved. In earlier encounters, twisting the dials underneath the thumbsticks resulted in only slight changes in resistance, whereas now there is a much larger range of tension, allowing for finer adjustments. "