Hello! My family of five would like to go to San Francisco for a birthday dinner around February 3rd or 4th. We would like a semi-casual restaurant where the men in our party could wear something like a polo shirt and jeans. One of us is allergic to all seafood, so it would be nice to find a place that serves both shellfish and other options. Where can we find a restaurant that isn't too expensive (no more than $25 - $30 max per entree) but has great ambiance, a view, and good service? The last time we were in San Francisco, we had a horrible experience! Any suggestions would be greatly appreciated. Thank you so much in advance!