I received mine two weeks ago in the mail, after waiting almost a year for it. It's definitely a hefty piece, very well made and you would never have to worry about breaking it. The finish is wearing a very little bit on the inside of the loop. But thats to be expected on a high wear/friction item. It's nothing major.
If you have the matching Magpul MS2 sling, you need this piece.
Before the RSA came out I bought a cheap, clamp on sling swivel. It was way too big for the "front clamp" on the MS2, making for a very sloppy sling attachment.
However, the RSA works perfectly for the two point configuration. Just enough movement/rotation when you are moving the rifle. That being said since the sling clip can rotate slightly, you can't put rail guards right up tight to mount. Theres a video on YouTube that explains what I mean, just type in Magpul RSA.
Overall I'm very happy with the purchase. I love Magpul products and would definitely buy another when I get an AR.