I've been to Sammy's several times of the past 8 years or so and have never had a bad meal. This serves reliably good Chinese food at decent prices. It is BYO to bring your favourite wine, caters to groups with bookings and the service is always fast.
Don't be put off if there is a queue for a table. Things move very quickly so the wait isn't normally too long.
A great place for a quick, simple meal in the city.