I picked up a pair a couple of years ago because I liked the design. Minimal number of aero spokes, reinforced rim at the spoke holes, deep rim, etc. Nice. I put a couple thousand kilometers on them, but never raced on them. The reason was that they were a bit too flexible laterally. I could get the rim to rub the brake pads in a tight corner which was a bit scary. This made me too cautious with them and hence, I didn't race on them.
Instead I gave them to a friend (non-racer) who increased the spoke tension to make them a bit stiffer. He enjoys them very much. I hope tat helps.