We've been to Hayashi several times now with larger groups and we've always had a good time. We've always sat at the hibatchis which is fun and lends for an interesting evening.
We've been to Benihanas several times and honestly, the food is better at Hayashi. We all had different items and everything was cooked to perfection. Nothing was dried out or under seasoned like you often get at Benihanas. JC was our chef and he was funny, entertaining, and fit right in with our rowdy crowd.
The only reason why I didn't give this a 5 star rating is that the drink service was SO FREAKING SLOW! Granted, the restaurant was jumping but it was a really long time between refills and I really hate that and its been like that every time I've gone there.