Costco is a great company, and this location is on par with stores in other states I've lived in. Friendly employees, clean, well-organized, and most importantly-- great prices. I don't tend to buy produce here because I can't go through it fast enough, but if I had a family of four it would definitely be my go-to grocery store. As it is, I'm a fan of the frozen section, things it makes sense to buy in bulk like toilet paper, the platters for parties (or when you really just want a giant shrimp cocktail for yourself), and miscellaneous items-- like great deals on socks and Prilosec. At other stores, I've had good luck buying bigger items like electronics, and I've gotten some furniture from Costco online. And of course, you can't complain about paying $1.50 for a hot dog and drink.
I don't suggest going right at closing-- checking out gets chaotic. But other than that, I wholeheartedly recommend Costco.