After 18 years, Chinois on Main is still one of the toughest reservations in town. What's the secret? For one, the food is as fresh and appealing as it was when Wolfgang Puck created it as his play on the enticing flavors of China and Asia. Filtered through Puck's French-trained sensibility, Chinois' cuisine has little to do with authenticity: it's Puck's quirky, romantic take on Asian food, brilliantly tailored to the tastes of Los Angeles diners.