Situated in the 1847 Commander of the British forces' house, the museum has both very modern teaware, as well as antiquities. An adjoining building houses the tea house and more exhibits. There were some very nice examples of chinese porcelian as well as a history of seal making. No photos allowed in that area tho.
While not stuffed to the ceiling like the V&A or other museums, each piece was certainly of a quality and example you will not see in many other places. An emperor's teapot or one from 1597 ... magical stuff.
There is a gift shop that has both replicas as well as true antiques (qing tea cups etc) and 80's yixing for sale. It is not inexpensive, but buying from a museum you will have a better feeling than if you tried to buy in a shop.
The tea house had song pin on the menu. $1,289.00 for twelve grams. I opted for a 1980's brick tea for about $6.00.
The museum is situated in a park that is well worth visiting to get away from the hustle and bustle of HK for a bit. Overall, if you are in HK for a few days, this would be a nice tea journey.

"Cream" tea - this is more like what butter tea is

Cup from mid 1800's

Cups from the 1730's

20th c cup

Late 19th c teapot

19th c Bell Shaped teapot

19th c teapot with flattened shoulder

Gongfu tea setup / implements

Gonfu explained

Qianlong Emperor

Qianlong Emperor's Teapot

Teapot with pierced knob from 1627

Magnolia shape teapot - 1597 Wanli period

"Dragon Belt" 16th c

Square Panel teapot, - 1597 Wanli period

Ming Teapots

Purple Clay info

Teahouse - mid 80's tea brick

Tea House - Dim Sum sweets

Tea Menu - Song Pin - $1,300 US per pot