The one thing I like about Costco, is the lack of choice and the Kirkland Signature Private Label. Kirkland Signature is on par, if not better, than their name brand counter parts.
Because they generally carry on SKU per category, the quality is generally very high.
The KS Bacon is hit and miss. I'll get a package that is 75% great and then a package of razor thin bacon slices. We also had a quality issue with their Italian Style Meatballs, one batch had way more filler than usual, the kids wouldn't even eat them, it was like mush.
Because they generally carry on SKU per category, the quality is generally very high.