I bought into the hype and got a Costco membership a few years back. One of the first things I went looking for was whole bean coffee (Peet's xmas roast). The local Costco had a bunch of coffee from Starbucks and Peets (meh quality to start) but only the painfully dark roasts and all of it was ground. Pre-ground coffee in bulk has a pretty limited use case (and relatively short shelf life).
Fast forward to last week and I went looking for a new fridge at Costco dot com. They prominently featured LG (ugh) and Samsung refrigerators. While some LG models seem to review pretty well I've never seen anyone say anything positive about Samsung, their service, or the serviceability of their appliances. I'm in the middle of dealing with a defective LG fridge and that's about the nicest thing I can say about LG's warranty and customer support.
Costco may have a permissive return policy and decent customer support but I would never blindly buy something without doing a bit of research just because it's at Costco. Especially with a big ticket item like a fridge I'd rather use my Amex anyhow.