Mr. vagabond and I went to Hong Kong last month. We had a blast. We stayed at a hotel on Waterloo Road in Mongkok. It was a short walk to Ladies Market where I honed my negotiation skills like law school could never do.
Taking the Star Ferry is, in my mind, one of the most romantic things a person can do.
We also went on the Big Bus tour that lets you get on and off different stops. We got off at the Peak Tram place. The advantage of going with Big Bus is that your ticket on the Tram is included so you don't have to wait in line with thousands and thousands of the unwashed. Be careful though because people still act like refugees and elbow their way into the tram.
The best thing about Hong Kong is the food. Dim Sum, congee, noodles, pastries, Singapore beef jerky, roast duck, steamed chicken with ginger/green onion condiment.
I lived there for a year when I was 2 years old, and went back many times as an adult. It's great every single time.