After about four months of use, these cables started ...
344933
After about four months of use, these cables started to hang on loosely to my devices. They would only charge them if they were angled at a certain direction and kept that way. I would suggest looking for a different cable.
906969
Nice cables initially, but after a couple of months the plastic cover on the Lightning end jack came off and the cable stopped working.
351408
I purchased this 5-Pack of USB cables in April of 2015 with the intention to share with the family.  They appeared to be sturdy with well made connectors.  However, instead of sharing, I have used each one of them as a replacement for the prior one that stops working after 2 to 3 months of casual use.  I am now on my last cable and it showing signs of going bad as it only charges if you hold it in just the right position.  My assumption is the the wires used internally are small and brittle and after a couple months of being slightly bent they break and the connection becomes intermittent.  The intermittent connection is happening just past the micro USB connector end of the cable.  I have gone through all 5 at this point and will not be purchasing these again.  I think I will purchase one very good one for about the same price.
805515
Loved these cables at first because of their length, texture and color, but unfortunately they only lasted a few months.
1159243
All three of these stopped working after three months or so.....I ended up buying a couple of the Amazon Basics brand cables which look way more robust and have not given any problems.
2765062
UPDATE: The seller saw my review, and offered to replace the cables under warranty. keep in mind these cables were at the end of the warranty period, and yet the seller took care of me. I am impressed with the customer service. As a result I am updating my review to five stars. I have no doubt that should the cables fail again, that they will be replaced. Most Excellent!

I will suggest to the manufacturer that they add an inch or so of strain relief sheathing to keep these cables lasting long.
3167370
After a few months using them to connect a DAC to a headphone amp I started noticing a hum coming from both channels.  Changed to a different cable, no more hum.
2624493
I used this as my phone charger at my bedside.  Only made it four months and two weeks until it no longer works. Poor cable quality.
2350350
Two of the four cables we purchased came apart at the lightning connector end.
187526
Well, I was completely happy with these until the white material that wraps the cables started to dissolve! I don't know if it is because of daily use (I used extensively for commuting purpose every day) or if it is due to super-powerful sweat. Doubt that.

Long story short, these worked fine for less than four months, and now with the white cords falling apart, they are completely unusable.
3816371
My cables lost their ability to stay connected rather quickly.  Doesn't "click" when inserted anymore after only a few months.
2769789
short term rental
cables work fro about 4 months and then start screwing up. only works on one side now
2561676
Worked very well for months but in the past four weeks it has slowly stopped working.  All other cables work just fine with my phone, but this one rarely gets a connection to charge; the phone doesn't even detect that it is plugged in.
701603
it is agood cable
in fact I bought 9 cables

update

after 4 months this cable doesn't work
1091085
These cables look and feel like better quality than most common cables, but it took me a month or two to realize that the occasional popping coming from a speaker connected through one of them might have been the culprit. I didn't realize they had any issues until I tried to use one of them plugged into a microphone. They popped and hissed and connectivity went in and out for both. It disappoints me, but they weren't that expensive so I guess it's what I paid for. I'll have to get different cables to replace them soon.
2033689
Unfortunately, after 4 months the male end piece of the aux cable has fallen off and these are now inoperable. They cannot be returned since we have surpassed the return window.
2933107
Works great for a while (heavy usage for about 4 months). Maybe I'm rough on cables. The 10 ft. length is awesome for my needs. It has stopped charging for me.