Many thanks, all! I'm excited to check out your recs :)

Will be in SF at the end of the month for my mom's 60th birthday and am looking for a special place that gets it especially right in terms of good food, wine list and atmosphere, without being overpriced or pretentious. We're staying in Union Sq, but can easily get to other parts of the city. And we'll also be going to B44 for a dinner and Chez Panisse Cafe for a lunch. Any suggestions would be greatly appreciated!