I did not have any problems with Aetna, which surprised me since I had problems with them when I was doing my IVF treatments/drugs, which they covered, but were being difficult. Like we cover the drugs but only of your Dr. injects them, yeah right, my Dr. is going to open at 8 pm (optimum time) to give me a shot! Finally, they came around and all went well.
I began my LB approval process with Aetna in mid-July and was approved after testing, psych, cardiac etc... on 9/6/06. We have a PPO policy which does not exclude WLS. My out of pocket is $500 and then ins kicks in at 100%. Also, since my fills will be done at the surgery center they are treating these as a procedure and will pay for them. I am scheduled for surgery on 9/28 with Dr. B.
When speaking with Aetna I asked how long the approval process would take and the rep said I would not have any problems getting approved. My husbands company is a large pharma and they have specific Aetna reps that work with the employees (maybe this helped). She did mention that not all policies are written the same and it just depends on what your company selects to cover.
Good luck with your getting your approval. Just be persistent and it will work out.