I've put about 200 miles on my Flo 30s and I'm very happy. They roll better than the Ksyriums they replaced, the wheel feels more "like it's not there" at speed, I believe I can feel less drag through either the bearings or aero when on the front of the paceline at 27mph and pedaling. I expect the brake track to turn silver and I'm fine with silver spokes. The biggest improvement is definitely the increase in cornering performance. It's a huge, gigantic improvement in feel and stability over the two sets of Mavics I own.

For better or for worse, these wheels are clearly a dramatic departure from typical wheel design.