A tale of two cables
I placed an order for a cable through Amazon that was on back order almost 2 months ago. Then late last week I found another cable that looked promising and was in stock, so I pulled the trigger on it. The next day the Amazon one shipped. So I ended up with two. Here's a mini review of each:
Amzer 5' through Amazon
While it worked, the slightest movement caused the signal to be lost temporarily. The cable itself is very stiff, and the packaging was odd, with the cable wound into a big loop and then twisted and folded in half to fit into a much smaller plastic package. This one cost me $11.61 after tax with free shipping and took 2 days to arrive (Prime membership).
Kanex 6' through iGoneMobile
This one seemed to have a much better connection. I moved my phone all around and the signal remained solid the whole time. The cable is more flexible yet still feels well built, and the packaging was excellent. It came in a resealable pouch, silver on one side and clear on the other, with plenty of room for the properly-looped cable to breathe. This cable cost me $12.49 with free UPS ground shipping and took about 5 days to arrive (including the weekend).
Of the two, I highly recommend the Kanex through iGoneMobile.