Optical cable cable Direct

I can understand the negative reviews regarding the quality of the product in any way. Here is written by "to loose connections", of "solid compounds" or "if I wiggle the cord, there is interference," What is this? I have three cable ordered, this added to my equipment and a TOSLINK distributor connected with some "force", but they sit on both sides of rock solid and stay there, and bring the quality I expected. I see no reason why I should "wobble" on the cables or changing the installation. Once hooked up, I want to change something, and closing. I would order the cable repeatedly at Cable Direct, because the quality is right, the takeaway is right and in particular the price is right, and everything 100%.