In the following shots you can spot the "Sammy's Kitchen" sign. It's the brown cow hidden slightly in the film grab but quite obvious in Streetview underneath. Sadly, the sign recently became a victim of the HK Govt's rather selective enforcement of building laws and was removed. Obviously Sammy lacked the personal friends needed to help him get it overlooked.
Quite a few of the buildings are still around. The only major change is the aforementioned Sai Ying Pun MTR station that now has an entrance onto Queen's Road up where the first film grab was filmed (you can see the construction work in the Streetview picture). It's been open since March 2015.