The food isn't bad. Some dishes are actually pretty good, others are just average or even mediocre.
The problem is the atrocious service. They're so busy yelling when every little thing happens (someone walks in the door, someone orders a shot, someone's birthday) that they get distracted from what they're supposed to do like bring out the food, check on and order, or even (and I kid you not) bring you the soy sauce they forgot to bring.
Dishes took on average an hour to be served. The hamachi sashimi (which the waitress said was flown in everyday from Japan BTW - it most certainly was not and was one of the worst hamachi sashimi I've ever had) was relatively quick at about 40 minutes. Let's not even question why it takes 40 minutes to cut a few pieces of fish, but why would you only bring one soy sauce dish for 4 people? So we asked for soy sauce dishes for everybody and nothing happens after 10 minutes. We then ask a second time, and a waitress brings *one* soy sauce dish after another 10 minutes.
On and on this went throughout the whole meal. 2 hours and 45 minutes later, I have a migraine from all the incessant yelling (and yes, I have no issues going to other loud places like Kinton Ramen), and they still hadn't brought two dishes out.
Save your money for the real Guu Izakayas. This former Guu is a disaster.