If you're looking for a fun, boisterous evening out with your friends, go to Guu. The staff are always in good spirits and that energy permeates throughout the restaurant.
The menu itself is varied enough to ensure everyone finds something to get excited about and the food is delicious! One caveat is with the baked oysters. I found them to be overwhelmingly rich to begin with, on top of which they put a layer of cheese.
If you want a quiet evening out, what are you doing at an Izakaya?! For all others, get in here and have some Sake!