Yeah, and I had mine with Dr. O 3.5 months ago and am also happy with the results.
One thing I've noticed about Dr. Z is that he likes to rag a lot on other surgeons in his presentations. I know this because he "accidentally" slipped some slides on Dr. O and Dr. Spiegel into his talk at Southern Comfort in 2010. Any surgeon makes mistakes, and emphasizing a very small minority of cases is a dishonest scare tactic. Some of his followers go spouting the things he says as fact and before you know it everyone thinks they're true. That's not to say I think Dr. Z is a bad surgeon - I just think he should stand on his own merits rather than attempting to bring other surgeons down. And for what it's worth, a lot of his patients look very similar to each other afterwards too.
As for Dr. O - the only 2 externally visible scars I have from a full FFS are along the hairline and under the chin. Any forehead work goes through the hairline scar. Chin, jaw, and I think cheek implants go through incisions inside the mouth. Trach shave goes under the chin.
Regardless of the surgeon doing your face, if you get your chin done you *might* need a lower face lift later. Older patients need them more often than younger patients, but us young patients may need them when we get older. Dr. O actually does a sliding genioplasty instead of burring, which can take a good amount off the height without damaging nerves.
