6pm proved to be just about as incompetent as any online retailer can be. After waiting weeks and never receiving an item that was guaranteed to be be shipped in 4-5 days, I finally called UPS expecting it to be an error on their part. They informed that that though 6pm had sent me a confirmation e-mail stating that UPS had received my item, that it was, in fact, still being stored at the 6pm warehouse. I called 6pm's customer care line on which I was greeted by a sheepish customer service rep who informed my that my items had been lost weeks ago and that they would need to process a refund.
My question is: if I had never called, would I have ever received a refund? My guess is: probably not.
I buy the majority of my shoes online and I have never had problems with other sites like DSW and private shoe brand sites. 6pm was unprofessional, and frankly, dishonest. This experience made it clear to me that buying from them is a mistake that I will never make again. I would encourage everyone else to heed that advice as well.