Hands down, one of the best Cantonese restaurants in the city. I have dined at Lai Wah Heen countless times for both dim sum lunch and dinner. Yes it is expensive, so don't come here with the intention that you'll walk out paying what you would if you ate at a Chinatown restaurant. Despite changing owners and some of the chefs being poached by the likes of Susur Lee or leaving to start their own ventures, Lai Wah Heen has maintained a general high standard of quality.
A few dishes to highlight - crispy chicken with black truffle, e-fu noodles, Peking duck, jumbo prawns, custard filled buns and BBQ pork puffs. The red bean soup is also great and probably my favourite across any Chinese restaurant where I've had this dessert.
I was worried that Lai Wah Heen would go away when the Metropolitan Hotel was sold and became a Double Tree Hotel, but I'm very glad that the restaurant survived and continues to put out great food.