The wheel is good.
The cable is intalled in one piece from horn, around the wheel, to the other horn. It loops once around the screw at the "front" of the wheel to adjust center after adjusting tension on the clevises to the horns. Use small plastic ties in the forward quarter openings around the wheel and cable to minimize any chance of the cable slipping from the track.
Now for my opinion. It looks nice, clean, very professional. With computer radios, however, I do not really know if there is much more advantage to this system over cables attached directly to servo horns at the same width as the rudder horns for actually performance. I use it because my coach and mentor uses it. When I go back to my old field of weekend pilots, they ooh and aah over the hardware and stroke the old ego...another advantage of cool looking hardware.
Whatever hardware is used, the really important part is how the control surface moves in relationship with the stick. Ideally, with zero expo and 100% rates, you want linear motion from center to end in both directions.