I run a pair on a SS road bike. They work very well, and appear to be built to a high standard. They're shaped like classic aero levers, but not the knife thin ones. I think they're quite similar to the original 600 stuff so they're comfy to ride on the hoods, unlike some of the other early aero levers.
My right one rattles a bit, but that's 'cause I drunkenly crashed it into the ground. I bet I'll be able to sort it out one day...
edit: At $20 they'll beat virtually anything else out there. Get 'em.