Lightweight, lighter than I'd ever thought, only 632g without BB.
Beautiful CNC finishing, even the drive-side alloy bolt and the preload nut.
Bought this to replace the Ultegra double I had. I used a racing double over the winter for strength training
I have been impressed so far, it is very stiff, and feels much smoother, and feels lighter than the Ultegra, and the parts are machined beautifully. It maybe more expensive than an Ultegra chainset but in my opinion worth the extra spend.