Go at 5.30pm, see the stunning HK skyline by daylight in one revolution, then stay for a second revolution (it takes 66 minutes) and witness the lighting displays switching on one by one in many of the bigger towers. One of the famous ones plays hard to get and waits until all of the other flashy ones have shown their best before it suddenly lights up. The restuarant has a very nice buffet dinner starting after dark but you can stand at the bar for sunset drinks only. Staff are friendly and efficient. It isn't cheap but is excellent value for the location and entertainment. Be careful when you go to the toilet (in the central core) because in the five or ten minutes you are in there, the view changes and you can feel disorientated and lost.
The Hopewell Centre, 183 Queen's Road East, on the south edge of Wan Chai at the foot of the steep slope. Take a taxi (cheap and highly efficient) or take a 15-minute walk over from Wan Chai MRT through the narrow lanes and market stalls.