Wanting a good steak close to my hotel - Marriott Marquis - the concierge recommended Lark Creek Steak - fourth floor - Under the Dome - in the Westfield San Francisco Center on Market. It was Sunday evening and I was tempted with the prime rib (Sat and Sun only). A nice thick cut, perfectly served to my 'medium rare' request. I tried the tomato bisque as an appetizer - nice preparation - well seasoned and pleasantly prepared. There was a nice crowd for a Sunday evening - the shops in the center are opened on Sunday until 8 PM! This is a restaurant not to be overlooked in downtown SF.