I really like going to Costco. Rumor has it they will soon erect one about a mile from me, which will be great. But until they do, I have no hesitation about visiting any of three that are 6-8 miles away. I find them friendly and clean and usually well-stocked, and I love all the free samples of food, which I have come to refer to as Costco Dim Sum.
I liked Costco even before I learned how well they treat their employees. Some folks seem to think that for "competitive reasons," you have to pay rock bottom wages and impose a plantation worker mentality on your work force. Not so, as Costco proves. This article tells how well their approach is succeeding.