Without the groupon, this place is still pretty good. We got the C combo. (See Site for menu)
The pork katsu was really juicy and all the meats were delish. My recommendation is to cook each meat separately to really enjoy. Like others here have stated, this is not Korean AYCE. The concept is similar but this is definitely a different sport. It's more about the quality and savoring everything. Of course, more is better.
This is probably the closest you can get to Gyu-Kaku (Honolulu, HI). If anyone has had the AYCE there, talk about premium qualities and combining the AYCE concept.
http://www.yelp.com/biz/gyu-kaku-japanese-bbq-honolulu
If they somehow brought that here in this fattening buffet town, Korean AYCE's could lose alot of their business.
Until then, YY is a fresh change of pace from the Korean AYCE places which I love as well.