Most of the okonomiyaki sold in Singapore seems to be similar to this. I purposely walked to Hassei to try it, because some blogs actually praise it to the sky.
I had to wait for about 20 min in the streets just to get a seat, but everyone else who was waiting, were all waiting patiently. It was a small and cozy shop that cooks the okonomiyaki for you.
AND it was Fantastic! I have never tasted one in Singapore that taste better! It was definitely worth the 20 min wait.
They were the usual politeness, when the waiter realises that he has to speak "Eigo" (English), when he ask me what I want to order when rattering off Japanese questions and I went "wakarimasen" (I don't understand). Luckily I do know some nouns like "nomimono" (drinks) and "ocha" (tea or oolong tea according to many shops).
At the end, I went "Oishii desu" (It is tasty) when paying, while looking at the chef, and he burst into a bright sunny smile, while bowing to me. It really was tasty.
Hassei (4-17 Fujimi-chō)