I wont speak to its aero advantage bc that needs to be tested in a wind tunnel on a specific rider. However, my last three triathlons with this helmet have corresponded with some of my top bike performances relative to competitors.
Yes, its a crazy looking thing like something out of "space balls."
The surprising thing to me is how comfortable it is. Well balanced. Ventilation is excellent, even with the vents covered. Visibility is excellent. It comes with two visors - a clear and a dark one. And of course a big case to carry it and both visors in.
