We have dined in Gyu-kaku in Cupertino, Chicago and Hong Kong. All three are excellent. Despite traffic in South Bay, we still come here for odd-hour lunch or early dinner, before the crowds. Happy Hours are a must to get favorable prices. All the beef cuts are great, including our favorite beef tongue. No pork belly though. Service is good and the grill is changed a couple of times or if you ask. The place is clean and very popular with the young generation.