I bought a fat bike wheelset from BikesDirect for a fat bike build. The price was the best around for what I was looking for compared to other places. The wheels are great.
3 months later (took a while to get all the parts from different places) as I'm building my bike, I noticed there was a spacer missing on the front hub. I'm not sure if it was missing from the beginning or if I had lost it. I contacted BikesDirect and within 5 minutes (5 minutes!) I got an email back from Larry with a tracking number for a replacement spacer. Fastest customer service I have had from any company. Highly recommended.