I don't usually like to post with a negative tone but I have to say that I do NOT recommend the San Francisco location. I find that some of their SA's are uppity and cold. There was one lady in particular who was overtly rude to me on the phone, and all I had done was politely ask why they were closed at 3pm on a Friday afternoon without any warning and not even a note on the door. (I had just received a voice message to go and pick up my repaired watch) It's little incidents like this that can totally cause me to downgrade my view of a business.
That said, the SF store is very large and beautiful, it was re-done not too long ago. When it was at its old (tiny) location about 6 years ago, my husband received excellent customer service from a really nice gentleman who helped him pick out my watch. Other than that, I cannot speak of any remarkably positive experiences at the SF location.