I have been a member of Costco UK for years. The cake was always chemical ridden, full of E numbers, trans fats, and sugar laden. I still liked it, though, in a fancying a sugar hit, guilty pleasure kind of way, especially those corner pieces! I knew it was pure unadulterated rubbish, but I just didn't care. On the rare occasion I got a piece, it tasted artificially good, and I liked it! The sprinkle cupcakes were good too!
There is still so much hype around these cakes that I just don't understand. We tried a round one for Mother's Day, and it was 2 x burnt layers of thin sponge cake (bottom thinner than the top for some reason), barely any buttercream or jam in the middle. The frosting tasted predominantly greasy, and not how it used to; rhe greasy taste took over the sweet. It was always a bakery artificial frosting full of crap, but it didn't taste like this. The cakes are no longer edible to people with a sweet tooth imo, who liked the original.
Any body work in Costco? What has happened to the recipe? I took the cake back, and the member of staff looked at me like like I was a spawn of the devil. He told me nobody complains about these cakes, and how can anybody not like them, and that they're famous for these! He convinced us to buy another, telling us it must have been a faulty one. The second one was just the same, disgusting!