It's unsightly, my double chin is bad, I can't breathe at night due to sleep apnea, etc. Now that I know that it's all a connected problem, I'm even more stressed...
 Chin advancement seems to be the best improvement method, but this also requires some nerve damage into consideration and seems to have side effects such as secondary angles, so it's scary.
 It's hard to find because there aren't as many reviews as I thought.