Yummo.
I've been to this place quite a few times now, and it's safe to say that I love it.
Do not expect to receive fine Japanese-only cuisine, as Big in Japan does Japanese fusion cuisine, and boy are they good at it.
First off, the décor: Cafeteria style with all of the Japanese quirks. Got to love the kiosk selling funky accessories.
Second, the cheap beer; they offer very cheap beer that will satisfy any beer drinker's appetite.
Third, the food; sooooo goood. I would suggest you share the potato croquettes and ravioli as an entrée and then share a couple of main dishes. The pork is always a good choice as it is cooked to perfection. I had the pork-braised salad and my friend had the beef noodles with eggplant. It was delicious.
Come to this place for the amazing fusion menu that is sure to surprise you and the low key cafeteria-style room filled with hipsters.