I needed something to dim the lights a bit in the studio and this was a winner.
My lamp cover came in with no issues and thoroughly secured.
I had to hide a hole 6.25" in diameter which was partially covered by a medallion 5.25" diameter. I got it to work with a goof ring (ID: 5.25", OD: 7") but it was a tight fit. I think ideally I should have got it with (ID: 5", OD: 7.5") that way there would be more overlap. Just putting it in here so folks ordering in the future have an easier time installing the goof ring.