I have never used one, have had no problems, and probably never will.

I started w/ fingers a while back. Then the string and now the loop. All my bows will have a loop. It's the way to go. You will get a quieter release. I have also heard that a loop is more forgiving in arrow spine.

I started with fingers (still shoot "sticks with fingers) and eventually graduated to the "string loop. In addition to all the positives that have been said, using the loop conserves the serving and eliminates much of the string "twang" that some mechanical releases cause.

Make sure you tie it on correctly and securely. Do not loop the string when you install it. Tie it flat against the serving; ends above and below you nocking area. After installation, slip a small screwdriver under the string and stretch the loop until you can get your release connected. Shoot a few strings and the loop will settled in.

I use the loop because it gives me more control of my location of my release aid,it's not sliding up and down on the string when I'm about to shoot .

nubo