I have been a Costco customer for eons, and I have always been very satisfied with them. But this last summer, I was going to use one of their vendor/subcontractor services for buying and installing new hardwood flooring in my home. Eventually, I went to someplace else. This vendor/subcontractor gave me the worse customer service you can imagine. Misquote (or quoted) 3 different prices on different occasions; claimed he couldn't remember dealing with us despite us being in his store on 3 different occasions; wouldn't come out to bring samples and insisted we come to his showroom; and the last straw was when he was a no-show for a measurement appointment in our home. While he was only a vendor/subcontractor, my complaints to Costco headquarters went unanswered. I wrote letters; called their HQ; and even went thru customer service on their website -- all to no avail. The only conclusion I can draw is Costco doesn't want to hear about problems, they just wish complaining customers just go away. The purpose for this posting is to perhaps warn Costco customers not to use vendor/subcontractor services -- dealing with Costco directly might be OK, but not their vendor/subcontractors.