This is by and far the best Old Navy in the area. ...

This is by and far the best Old Navy in the area. Bot only because it's the biggest, but because the staff is so nice and attentive. There is always someone there to answer a question, find a size, or do a price adjustment when your email pings a huge coupon 2 days after making a ginormous purchase. Real talk, if you're going to shop at Old Navy, come to this one because they'll be helpful and kind. It's nice to go into a store and be treated well. The Serramonte and Tanforan locations do not have staff half as friendly as Market/5th st SF.