This Costco is my favorite one that is near me. There is one a few miles closer and I come here instead.
I've used thier tire center and have had a great experience. One of my tires went flat about 8months later and they replaced it no questions asked. Any time I need air I pop in if I'm nearby and they check them and fill them up.
I find this location has the best variety of products for me and my family. It is always clean and while it's busy (what Costco isn't), they open the majority of lines and this helps things go more smoothly.
Orders here for me from thier bakery have always been fulfilled perfectly.
The only questionable experience here was buying thier roasted chicken. They looked a little larger than usual and when I cut into it at home it was underdone. I had to drive back but they took the chicken,refunded me and offered a new one (I wasn't feeling it after that) they apologized and a manager reassured me they would check the ones that were still on display.