I have generally had very positive experiences with Costco. But I am not happy that, in my view, they took advantage of my mother. She was checking out and she was yet again approached about upgrading her membership. The salesperson did not take no for an answer. She was pressured. She is 88 years old and was tired and gave in and said yes. $50.00 later and a long ride home, she realized she did not want the upgrade. When she called, she was told she had to be there in person to cancel the upgrade! I do not know if this is legal, but it sure is inconvenient! I called and got nowhere also. She's frustrated and I'm angry. I'll be surprised if this review is published.