Having had my third client meal here recently, thought I'd add it as the first restaurant review on MarCom Professional :-)
Fundamentally, I find Shepherds to be a perfect restaurant for client entertaining. Attentive staff. Good location. And the good spacing between tables provides for relative privacy. There is also a private room at the back for larger groups, which from memory seats up to 20.
I particularly like Shepherds for US clients looking to eat English... fabulous sausage and mash!