For any factual data (opening times, or the name), I used the Instagram accounts bio. Google maps was exclusively used to just prove the place exists as I'm not sure if I had to prove it's existence for it to get accepted? Also, as I didn't somehow copy the coordinates from Google maps, but manually placed the pin, it shouldn't cause issues? 

Regarding addr:unit, that's a good point, I didn't realise that existed to be honest. Regarding the name, I can add it to name:en without the Chinese characters, but I wasn't sure, as all official stuff by them have both the English and Chinese on? 