I have a great time whenever I go to Guu. It combines some of my favorite things in the world - good drinks, good food, and yelling Japanese girls. Haha. The ambiance is the best part of this place, and you'll find yourself yelling along with the serving staff even if you don't know Japanese. I suggest yelling your favorite electronics brand "sony nintendoooo" etc.
Foodwise, I would recommend the salmon natto yukke, karaage, grilled saba, and kakuni braised pork. Drinks wise, you cannot go wrong with the big mugs.