OMG this is the best taiyaki I have ever had! Trust me, I have had one from Galleria (duh), numerous times in Korea (my favorite winter street food) , and twice in Tokyo. You wish you would have seen my reaction after I had the first bite. I was already full from dinner.
I don't know how they make the batter and the fillings, but wow good for them. They are so generous with fillings too. Good thing I live far from here otherwise I would be grabbing these babies every day.
Just give this place a try (it is inside the PAT store). I recommend getting freshly made ones. They tend to make ahead and let them sit in the cabinet.