During a recent trip to the King of Prussia Mall, we decided to try the Rock Bottom Brewery for dinner. I am not sure if our late dining hour was a contributing factor, but the service was less than stellar. Tables abandoned by patrons were not cleaned, waitstaff was slow. The food was decent, though, with a beef tips entree costing around $14. The wine list was decent, though beer is obviously their specialty (I didn't try any, but they have many local microbrews). I would eat here again, but hope the service is better. Maybe we hit the place on an off night.