Throughout my testing I had no problems with the cables. I was able to charge an iPad Pro at the full 2.4A rated charge rate. I have no doubt that these cables will take a ton of abuse. Even if you have an issue they are backed by an 18 month warranty. The only complaint I can make against the kit are the included Velcro strips are not the best fit for this application. I found they work much better if you cut them in half and do not use the wide end.
If you are interested in purchasing these cables they can be found here.