I'm in SF! My restaurant is in east bay (around oakland airport). It's fast food - nothing fancy at all - but if you're ever planning to be in the neighborhood feel free to drop me an email :)
I chose to go with something simple because I'd love to expand in the future to bigger and better but if I don't even have basic experience with any kind of foodservice biz, I'm pretty fucked. Also the take-home profit is not that different anyway ;)