This will truly be an unique restaurant experience! This place is formerly called Guu and I always wanted to go here because of their atmosphere and delicious eats.
I highly recommend making reservations because this place gets extremely busy. I made reservations for a group of 4 through Yelp which turned out well. As soon as you walk into the store you will be greeted in a really loud, and enthusiastic voice from the staff. At first, I was quite embarrassed because I felt that everyone was looking at me, but this is the complete norm.
I highly recommend ordering from the Party Menu. I felt that the portions of the food was perfect and you get to try out their most popular dishes. We ordered the A Course.
My favourite dishes from the menu were the Brie Cheese, Karaage, and the Kinoko Bibimbap. The fact that you can try out 8 dishes for $20 + tax/person is a steal.
I think this place will be great to come for your birthday as well! They sing you a birthday song and everyone around you clap as well :)