I have stayed at the Metropark Causeway Bay a few times and I was very happy with the room and services. I always stayed in a Parlour room. This hotel is located at the eastern fringe of Causeway Bay in a predominantly residential neighbourhood but access to public transporation is excellent. The A11 airport bus has a stop almost directly outside the hotel's main entrance when going to the airport. (The hotel is on a one-way street.) This hotel is a good choice IMHO. If you're staying for seven consecutive nights, there is a long staying package. Contact the hotel directly.
You may also want to check out the newly renovated "The Mira" (
www.themirahotel.com), formerly the Miramar. A good mid-range hotel in Tsimshatsui.