To everyone on this site who helped me plan my trip to SF. I have been here less than 12 hours and I am already in love with your city. The only negative is that I wish I booked longer to stay! 4 full days will be enough to do tourist things but I want to just enjoy this wonderful city without a schedule...I guess it's a good excuse to start planning a return trip when I get home! Trip report will follow next week. Thank you again to all of the locals on this forum.
Ps. Every single person I have spoke to since arriving has been so welcoming and friendly, great vibes!!