I made mention of this while mentioning places for shaved ice, and Melanie's response prompted this post as it was flagged as important information. ;-)
I've never been Joy's sister restaurant but remember seeing ads for it in the Chinese papers a year to two ago. Have not seen any new ads since, and subsequent visits to the Foster City restaurant showed no mention of the sister restaurant on the menu, so I had forgotten about it.
I only recalled this from seeing a listing for two restaurants sharing the same Chinese name, but different English names, in the Sina SDS yellow pages mini book a few days ago. Luckily I still have a copy so I quickly looked it up again.
I've only been told by friends once that the sister restaurant is not as good as Joy. I don't know if they have the same menu but it shouldn't be far off.
Here's the info:
6295 Jarvis Ave
Looking forward to hearing your reviews of Mays, and if you saw it here first, please link this post.