Scottsdale, Ariz. — P.F. Chang’s has opened its Royal Hawaiian location as an upgraded flagship restaurant. The Honolulu dining destination was the focus of significant investment recently completing a 6-month renovation, resulting in significant upgrades to design, décor and ambiance at the 10,000-square-foot site. The new flagship at 2201 Kalakaua Ave. opened on September 7. “P.F. Chang’s prides itself in offering an immersive Asian dining experience, and this new flagship location allows us to do so in a distinctly differentiated way,” says Tana Davila, chief marketing officer at P.F. Chang’s. …