I tried them and Nitto North Road bars, but didn't really care much for either. They had a pretty wide variety of positions, but all seemed mediocre. Then on a lark, I tried Nitto Porteur bars (on my porteur bike, which originally came with galdarn beach-cruiser bars) and with a slightly longer stem, they are the bee's-knees and the dog's-bollocks! Only two real positions (four if you don't mind going asymetric) and all options seem good.
Handlebars are like saddles: it might take a few before you find the apple of your ass' eye.





Edit: It might sound silly to see the tops as the aero position, and the "drops" as the relaxed/upright position, but with a slightly longer stem, you can bend at the arms while bringing them in and really get down there. I always remembered Andrea Tafi looked lower on the tops than the riders he was dropping who were all down in the drops.