It offers another hand position....you have the flats, hoods and drops, but also just behind the hoods. It's a very comfortable position. In the pre-brifter days, riding on the hoods could be quite uncomfortable. I don't know if you have ever taken a ride with non-aero brake levers, but they kind of suck to ride there.

I like them. I have a Nitto rando bar, and ever other drop bar feels to wide to me now.