Honestly, you dont need to spend mega bucks here to get great food. Hong Kong is the home of the status seeking who will eat anywhere so long as the price is high... bearing no reflection whatsoever on the food quality. The Michelin guide will be your best bet... and the main difference between a 2 star and a 1 star will be the service/presentation surrounding the food. There are some very cheap 1 star/Bibs Gourmand places here.

Din Tai Fung for example is one of my favourite restaurants globally. I couldn't care less what the service is like, for ~100HKD per head you cannot fault the food.