Bought three of them about a year ago, and have already retired two to the parts box, with the third one on borrowed time. I do takr creidt for being smart enough to cut those damn plastic hooks off from the jump, and using the loops they went thru as mount points for para cord loops, but that's only one of the things wrong w/them.
They're too damn wide, for starters; and the slippery material they're made out of means you've got to cross body the sling, or keep your hands holding the thing all times, or it'll go right off yout shoulder.
All the geegaws and add ons are just stuff that gets in your way when you want to get the piece into action quickly, and really serves no useful function on a day to day basis.
If you're into Israeli type mil stuff (I am[:D]), the older model slings, for the Galil and FN FALs are much more practical. Tan woven canvas, they stay on your shoulder; wider than the US GI model, but not so wide you can't find a niche in your shoiulder to snug 'em into; and long enopugh that you can hang the rifle around youre ankles if you want to.
They come w/ metal hooks and/or cloth type hanging loops. I take the hooks off and just use the loops.
Sayeret may use those other types, but they just don't meet my needs[;D]