This is as about Hong Kong as it gets here except for the unusually polite staff (which you definitely will NOT find in HK).
This is my go-to place for simple but delicious soup noodles. There's no abundance of options here, no fancy stuff but just plain deliciousness with your favourite dumplings (only 2 options; sorry nothing for vegetarians), meat (beef only), fish (sorta but not really.. more like fish paste) and veggies (Yu choy only LMAO).
The soup is so hot it burns you, so salty that it's addictive, so simple that you can dine and dash in less than 10 minutes (with a few burns). The chili oil is stupid spicy but so darn addictive. All in all, you will be out the door in under 15 minutes with a few dollars to spare and a full stomach. Soup noodles don't get much better than this anywhere in the city.