I had heard great things about this place but was really disappointed in it. The ambience was fine, but the food was mediocre, the prices were high, and the portions were small. I go out of my way to try Thai restaurants, from fancy sit-downs to hole-in-the-wall takeout, but this is one place I won't return to. My pad thai was bland and greasy. With really great Thai food across the street (Porchai, on Center St) the only advantage I can see to Duck Walk is the fancier atmosphere and wine list.
Pros: wine list
Cons: food, prices, and portion size