Oliver's Studio -- St. Louis, MO
They call themselves the "Curly Hair Specialists." There are only two officially trained Deva stylist, I believe, but those two then went on to train several more stylists. I had my hair done by Derek, who was a "second-hand" trained stylist. I really recommend them! I believe the price range for the Deva stylists is $45-$65 when I went. Mine was $50.