Kinka (formerly Guu) had a very upbeat and entertaining atmosphere, making it the perfect place to go for dinner and drinks with my small group. This was probably one of the loudest restaurants I've ever been to - while it was a lot of fun for us and suited the occasion that we were celebrating, I would not recommend it if you are looking for something more intimate where you can hear every word the person in front of you is saying.
The food was pretty great, but it would definitely make more sense to come to this place if you have at least a handful of people to share dishes with. That way, you can try a little bit of everything. Every item that I got to try was uniquely delicious and had so much flavour to it. I really liked the eel fried rice and the takoyaki. They also have an awesome drink menu (lots of neat girly drinks as well as sake) so you really want to check that out. I loved the lychee mojito!
I'd specifically suggest coming here for your birthday. The workers are extremely energetic and lively as they sing and dance the birthday song to you. They certainly know how to make you feel special!