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we went to the Misato branch costco. I haven't go to other costco branch yet so maybe they are different at each branch. But I think they all have same concept, buy in big bulk and cheap. My must to buy at costco usually their rotisseries chicken, muffins, jasmine rice/cheap now about 1.9k yen/5kg. Their father usually going there for foreign alcoholic beverages and steak.

Yes, same for our family, wife loves the chicken, easy, cheap, loves the breads & cheeses. I am there for the A4 beef, booze and bacon.