"Overpriced" is the most accurate description of this place. If you have a taste for good, authentic Chinese food, your best bet is to skip Pearl.
The Kung Pao had no "pow," the Mongolian Beef was bland, and the $9 hot and sour soup was good, but that's not good enough for a small bowl of soup that cost $9.
The only points I can give this place is for its ambiance and large wine list. But for the food, keep walking. Better yet, take a cab to a real restaurant off the strip.