I am an airline employee,who has been to LHR so many times I have lost count..we stay at the Royal Garden and not far from this restaurant.
It may look like a hole in the wall..and it is..but the food is outstanding..and the prices cannot be beat! I ALWAYS start with the # 6..dumplings...you cannot go wrong at this fine ,and what I think is a family restaurant!!
By the way..Kobkuhn means ( I think...THANK YOU ).
P.S. I miss the guitar on the wall!!