I stayed at the William Penn for Mathfest 2010 (don't judge!) and one of my former professors treated me to a birthday lunch here. It is fantastic!
The service was impeccable (as was the hotel stay) and the food was lovely.
I had the roasted pear and arugula salad. In a city that puts French fries on their salads this was a breath of fresh air. The salad was amazing, it had a light sherry vinaigrette, bleu cheese crumbles and caramelized walnuts!
My dinning companion had a pan seared salmon with garlic cream sauce, veggies and bazmatti rice. She raved about it the rest of the trip.
We shared a HUGE piece of strawberry shortcake - which was also amazing.
If you are in town this is a great place to go, they also serve High Tea in the afternoons by reservation.