Great list. As a Chinese who is living Nairobi currently, I'd like to add one authentic Chinese restaurant to your list -- Bangkok Chinese Restaurant. This restaurant is located on the ground floor in Rank Xerox House Westlands. Although it has a strange name as a Chinese restaurant, the food is as good as the one you can find in China. Soon they are going to offer the tranditional Dim Sum in their restaurant and opening a Dim Sum branch at Yaya Center in this September. I had the opportunity to try their Har Gau and Shu Mai, Yummy! That's real Dim Sum not the one that you mentioned in Zen Garden.