My wife and I will visit San Francisco from 27 Nov til 2 Dec. We will tour Sonoma wineries and will dine the evening of the 29th at Chez Panisse (wife's birthday). We last visited SF in July, before that visit there was a 25 year hiatus. We travel to Italy twice a year, so will be interested in recommendations for Italian or unique SF dining experiences. (Staying near Union Square.) Thanks all.