I've only ever been to Postino's for their Monday/Tuesday night specials and while all the raves about the bruschetta and wine are true, I will warn you that parking and getting a table can be tricky. I generally end up finding empty chairs in the outdoor bar area and pulling them together with a side table to create a makeshift booth of my own! I'm not picky when it comes to things like that, and the price is right at Postino's so it's still one of my favorite date night spots. And the lack of seating only attests to how tasty this place is!
You don't need to be a wine connoisseur to enjoy Postino's either. The staff is good at explaining their flavors without making you feel incompetent for not understanding the difference between shiraz and merlot.