mscocoface--yes, my hair is similar to yours and i have had a rollerset done and my hair came out quite smooth--in fact very close to the look of the OP. the guy who used to press my hair would first rollerset and then lightly press. my hair was already really smooth from the rollers before he even had to press. the salon where he worked, used really great conditioners that made my thick, nappy hair easy to detangle. they would then rollerset and I had to sit under the dryer for a little over an hour.
i don't have the confidence of doing this myself, but when i get out of my braids, i'm going to have him just do rollersets for me.
you're in OC, right? the salon is in LA, so I can give you the info if you want and maybe you can try him and then duplicate the results later yourself.