We (3 adults) stayed at the Holiday Inn Express just last week.
Good thing about the hotel is the free broadband access and friendly staff.
Not so good thing is the sofa bed that was not very comfortable, and the worst, there was a smell on the sheets. The walk from the MTR is quite a distance for the old folks.
For the price I paid, I find the overall experience slightly above average.

We just stayed at the hotel for 2 nights. The hotel is right across from Times Square mall. The MTR is in the basement for Times Square so you can travel around HK. We bought the 24 hour pass. The hotel lobby is on the 1st floor and the hotel is a typical city hotel. It is clean and newly renovated. The room is small and basic but we hardly stayed in the room. The breakfast (included in our price) was a selection of 4 set menus. Quite sufficient. Overall a good place to stay if you are going to be siteseeing. The markets (ladies and night market) were a disappointment, don't waste your time there. The subway MTR is very clean and convenient. A good stay overall.

This is second time I stayed at Holiday Inn Express in Causeway Bay. This is perhaps the best budget hotel I have ever stayed at in Asia.
Rooms are clean. The service from the front desk to the cleaning staff are polite, efficient and very friendly.

It is close to the MTR (underground rail system) and right across the street from Times Square. Restaurants in the hotel as well as restaurants galore across the street at Times Square.

This is an expertly run hotel with very well trained staff that go out of their way to help in any way possible.

I will be in Hong Kong twice in the next 12 months and no hesitation as to where I will continue to stay.

The only and I mean the only downside is that all the rooms at the hotel are the same and as a platinum member there are no room upgrades and no special benefits like newspaper outside the front door every morning....but that is small potatoes compared to the benefits.

This is the place we will stay from now on in Hong Kong. On previous trips we stayed at 5 star hotels including the incredibly posh Oriental and the Ritz-Carlton. We decided to try this hotel for one night since our flight quite late into Hong Kong and we didn't feel like we should spend the extra money for the evening we arrived. Our original plan was just to stay there for one night and then transfer to the Mandarin Oriental Landmark for the following 2 days and nights. After our first evening, we decided to just stay at this Hotel. First of all the location of the hotel is just a few minutes walk from the MTR subway stop at Causeway Bay. Unfortunately it was a little confusing finding the hotel. The exit from the subway was at the Times Square Mall, a huge shopping center in Causeway Bay and the sign for the hotel was quite small and almost unnoticeable. Also the walk from the subway was a gradual uphill climb. In any event once you get to the hotel, checkin is fast and the reception staff very friendly. There is no bell staff so you will have to carry your luggage yourself up to your room. The hotel has 29 floors. The elevators were large and the wait time not so bad. The room we were given was very nice, large enough for 2 twin beds and a double sofa sleeper. The room was very clean and had a nice view of the city. There was a 20 inch television and a nice work desk for use. A plus is definitely the free high speed internet connection. There was no wi-fi in the room but I believe there is one in the lobby area. We were also provided 2 complementary bottles of water each night. There is an in-room safe and cotton slippers were provided. However there were no robes provided. The bathroom was small but the shower had hot water and good water pressure. They provide shower gel and shampoo in a dispenser in the shower. They also provide toothbrushes, shower caps, and sanitary napkins. The beds were very comfortable. At breakfast they provided us with breakfast vouchers. At breakfast they provide you with a choice of one of 3 set meals which includes orange juice and coffee and some fruit. The food was ok if not altogether filling, but there are many cafe's around the area, All in all, this hotel provides great value. While its not meant for people who want to be pampered like crazy or for a wonderful honeymoon, this hotel is great for most of us: a clean hotel with friendly service, free internet, and at a great location in Hong Kong for shopping and as a base to get around the city. I plan to stay here in all my future trips to Hong Kong.