I have not run any kind of performance tests, but there are certainly no transmission problems with this cable on my current Gigabit network. What I really liked about the cable it how the colour blends in much better to the room and how easy it is to run, because the cable is braided nylon, which makes it much less prone to twisting. So much easier to manipulate and lay out exactly how I want it!
I know, ethernet cables are hardly something most people get excited about, but this one is excellent. The flat cable can be shaped, so you can run it straight along the edge of the room without it curling, and bend them at the corners. The nylon casing is sturdy and the insulated wires mean no interference. If you're looking for some new Cat 7 cables, I can certainly recommend you getting this.