Thanks for all the perspectives. I already had it done. I too was really looking forward to it and didn't mind parting with my life savings. My results were good for the most part--I got my bite and chin fixed, my sinus issues reduced, and my sleep apnea cured.
However, my sinuses still feel congested whenever I don't have my humidifier on full blast at night (possibly because the heat's always on nowadays). My face also looks fairly asymmetrical now, noticeably more so than before. The left side of my face has always been much smaller than my right side, but my lower jaw had been crooked and had tilted to the left, conveniently camouflaging some of the asymmetry. Now that my jaw has been properly aligned, the asymmetry is very noticeable. My face also looks like it lost some volume since I no longer have a receding chin, which now makes me look slightly older. I'm still satisfied with my results overall. I had just thought that after spending so much money and putting myself through so much suffering during the recovery process, my bite, bone structure, and breathing would be close to perfect. I now feel slightly broke whenever I see my bank account. Thank goodness I didn't have to dip into my IRA.