I made a quick trip to Phila (from L.A.) for business, and was able to get a couple of dinners in. First, right after stepping off the plane, my parents took me to Nan, one of my mom's favorites. As usual, Nan was wonderful, and made all the better by my dad's terrific wine selections. We started with the crabcakes (wow!), chicken satay (good), and an interesting salad that was delicious. For entrees, we had the salmon, which is one of my favorite salmon dishes anywhere, the filet -- tender and flavorful, and the lamb (this dish I would skip). The service was warm and friendly. I only wish they would spruce up the decor, which is so dull. But at those reasonable prices, I will continue to recommend this gem.
My friends and I had dinner 2 nights later at Stephen Starr's new place, Jones. I recall a positive posting on this site, and unlike most chowhounds (at least the vocal ones), I like Starr's places, so we decided to give it a whirl. It was a Monday, so the options were limited anyway.
I have to say I disagree with the posts I read. The food was not very good at all, though admittedly, we only tried about 3 dishes. Fried calamari was just plain bad, and the tuna tacos were in Ortega-type out-of-the-pkg taco shells (weird), which were stale. However, I will say that the mac-n-cheese was very good, and the martinis were terrific. The dessert - some kind of ice cream sandwich - was worth returning for. Also, the service was extremely attentive (at times overly so), and prices were very reasonable.
My conclusion - it's worth going for drinks and dessert, and I think it will be more fun in the winter w/ the fireplace and all. But do not expect top-notch food, at least not on a consistent basis.