As a Christmas gift, I'm looking to get my sister a gift certificate for her and her boyfriend to a restaurant in philly. We received a recommendation for Fork, but after reading about it a little I'm not so sure -- seems like many people are disappointed. I'm looking for something with nice but casual atmosphere (not too snobby) and food that's good but won't scare off someone who doesn't spend a lot of time in restaurants. Looking for a place in the range of $15-$25 entrees.
Thanks for your help!