Charge without fighting the cable
345976
I've got two of these. The first is at my office. It's simple to set phone on and charge. I really like the angle and the speed of charging. I haven't noticed any heat problems in the last few months of use. The one at home works fine. I seem to have to adjust it's position more then the one at work in order to get it to charge. All a great device.
90492
Charges without error or warning message. Make sure you get Apple verified products as the inferior models will charge very slowly.
949893
Great cable, nothing to complain about. It is so much more convenient to have a super long cable for charging my phone while it is in use.
4150913
The only issue I had with this was the cable that connects it to whatever device you're using.  It would only work if you turned/twisted/held it a certain way after a few weeks of use.  But if you charge it you won't need the cable.
1028222
This is a nice neat way to store backup energy, but the short, stiff cable makes it hard to use the phone while it is charging the phone.  It does seem to work ok, but came with no instructions.  I finally figured out how to make it charge the phone.  So, this is not a power option when your phone is dead and you need to use your phone... but it is an option when your phone is dead and you want to charge it up while it is laying around.
I will update this if I find any problems in the next few days while I use it.  Oh, yeah.. it does NOT have the usb port that is pictured on the Amazon Deal page, but I'll keep it anyway. I do like the way it plugs into the wall for charging and the fact that it is a small neat package that can be stored easily.
OK, here is another plus.  Since I've been typing this review, it has brought my phone up from 76 to 92%.  That is charging pretty quickly in my opinion.
326973
It does quick charge ( I had a defective charger ) cable material is pretty, sturdy, flexible and it does not tangle.
It conects firmly, without damaging the phone.
213292
Charge up electronics quickly with these cables..
3613341
This cable charges my iPhone, my iPad, my mom's ASUS tablet, and my microUSB devices such as the Kindle and my Anker battery packs. I keep one in my purse, car, and two in my house. All of my cable has worked without problems. I have been gentle with the cables and they have not given me any issues with snapping off, etc. Highly recommended if you have both microUSB and Lightening devices to charge. Very convenient.
3877686
Although it arrives with outdated instructions written in another language, you don't need the instructions. You slide your phone into the case (easy peasy). And you never have to separate the two again. They charge simultaneously. It says to charge them from a data port. I don't know what a data port is but I generally charge them off an imac. But I have also charged them by plugging into an electrical outlet. Then when you're out and about and want to give your phone some extra juice, you push the teeny tiny button on the back of the case and it begins to charge. The extra weight is noticable on day one but I'm now accustomed to it. It fits in the same pockets it used to fit in. Finally, the pink case is very attractive.
3598972
I like being able to charge my devices without an AC adapter.  My phone with it's case doesn't really fit in the side tray, but charging is really fast.
397976
This works as expected. I haven't noticed any lag in charging speed or other issues. Also, it fits firmly both to the cable and into my phone. I just wish there were a way to connect it to the cable when it wasn't in use, like when I use the micro-usb cable to charge my kindle. It's such a small piece, I'm afraid I'm going to lose them. All in all, I'm happy.
823596
I use this cable to charge my iPad.  No more excess cable all over the counter...
3005885
I spend allot of time away from charging options, this should fill the bill. I haven't had a chance to really test it.
3611532
Should be able to charge 100% overnight. Only charges between 75% and 88%. Would not recommend buying this particular sync cable.
597612
Got this for a week now.
Pro:
Not slippery
Charges fast
Design seem to protect phone from a fall
Cons:
While being charged via the supplied cable, phone shows full charge at 100% but continues to be charged. When I remove the supplied cable, the phone continues to be charged and you have to press the button at the back to stop the battery case from charging the phone.
3080269
I wanted a short cable to keep in my desk (which has a USB port) in case my phone needed an emergency charge. This works perfectly for that. The only issue is that I have to remove my case on my iPhone 4S to use this cable. If I had to use this cable and remove the case to do so every day, it would be a major pain. But for an occasional charge, it's worth the money.
4955797
No need to wear out the charging port on my phone. Just lay it here, with the case in place, and it charges just as quickly as if I'd plugged it in. I'll never use a wired charger again at home. It travels well too. Light weight. Cord unplugs from it for easy packing.