Golden Corral is not a bad place to work as a manager depending on the ownership group. I worked for one that did everything on the up and up, followed recipes and used ethical business practices and another that used shortcuts, unapproved vendores except when corporate came in to inspect once a quarter.
As a GM you have control of your schedule but it is still alot of hours. I averaged 50+ a week and I have pulled as many as 90 hours before.
My average income with base AND performance bonus was about $90,000 per year.
Was with the company about 5 years. The hours DID help speed along screwing up my marriage. That was probably a good thing!