Very well made and polished. If you're wanting to match the matte black look of your AR, then don't get this one. It's more compatible with an shinier look that AERO precision or GIBBZ offers. Do i care?? no.
It functions great, and holds strong to the QD sling than other adapters, because there's a groove in the center ring to allow the rifle to swing and go wherever. Other adapters I've seen do not allow the rifle to rotate like that, but have fixed positions for the qd sling to go into.
Lastly, the only worry I might have is the fitment with buffer tubes. I placed it most recently on a KAK pistol buffer tube that is slimmed down to normal diameter buffer tubes.
I also have one on a larger diameter pistol buffer tube. The diameter doesn't matter (i'm just describing which ones I'm currently running), however, the threading may matter mainly because of THIS back plate's notch to be pushed onto the buffer tube. The buffer tube may have different widths for the back plates to slide down. The KAK slimmed pistol buffer had some difficulty being pushed on.