In Soho London there is also a Chinese Resonant known for its rude waiters and there is the infamous Coach and Horses which I have drunk in a few times.
I think you mean Wong Kei! It's great, but similar in set up (multi-story, tasty yet cheap, and legendary rudeness).
Was hugely disappointed to take a friend there a few years back and find they'd dialled down the rudeness completely: no "Next floor" yelled at you when their floor was full and you had to trudge up more steps.
I ate there around 1990, he asked for my order and I started to ask for the starter 'chicken and sweetcorn sou....' when he shouted at me 'no time for soup!'