I like Costco and the staff at the pharmacy are always friendly and helpful even though they're extremely busy. But, my biggest complaint is the pharmacy hours they're only open until 7 pm during the week and closed on Sundays. Come on! Closed on Sundays that doesn't make any sense. When the majority of people are off on Saturday and Sundays. My only suggestion is for the pharmacy to be open for some period of time on Sundays.