These cables are awesome. You can bend and twist them without any problem. That's the best you can expect from a patch cable: no problems, no noise, no apparent signal loss. Also, being so thin, they save you those precious centimeters of expensive real estate in your pedalboard.
I only read reviews from other users after ordering these, and got a bit concerned after reading about so many cases of faulty units. But I have a dozen in my pedalboard for 3 or 4 months and have yet to have any problem with them. If these cables were available in sizes like 7 cm and 12 cm (in between the available sizes of 5, 10 and 15 cm), I would buy.