This is by far my favorite restaurant in Philadelphia. It is a Hong Kong style restaurant in an Asian mall between 6th and 7th on Washington Avenue.
The menu is very large and everything has been very very good. The prices are reasonable. The only dish that disappointed was duck tongue and duck feet. My problem with that dish is that the tongues have a bone and they are therefore rather tedious to eat.
Everything else that I have tried is wonderful. I eat there just about every time I am in Philadelphia. I think that if this place were close to where I live (lovely Trenton) I would make an arrangement to eat there all the time, taking what ever they chose to serve.
It is just about impossible to single out anything as the best. All the dishes are. They make wonderful noodle dishes and great hot pots. As a means of comparison, each year I visit a Chinese friend in San Francisco. Of course we eat in Chinese restaurants. Hello Cafe is as good as any and better than most.
The staff is friendly and the young cook from Malaysia really knows what he is doing.