As to wait times, we were at B&C late afternoon and STILL waited 20 minutes for a table. Because its so small, it can be easily overwhelmed at odd times - in our case I think we hit the middle of "take a break from SAB snack time." People have reported good luck right at opening.
BTW, we were not impressed here, and I wouldn't go out of my way for it. After a 20 minute wait, it took us another 20 minutes to get served by a surly waitress. The food was OK - but certainly not the best burger I had that week (Sci Fi and Le Cellier have better burgers, IMHO), the ice cream OK (Ghiradelli's has better ice cream). The restaurant was dirty - lots of people tracking in wet and dirty from the pool. And it was expensive for what we got. But other people love this place.