Shift quality aside , how was the operating noise from that cassette?
I had a Garbaruk 11sp cassette a couple of years ago and it creaked badly. I figured it was from the construction, having the 10 steel sprockets on a hollow pyramid, the largest sprocket bolted to that block, the spline contact points at the smallest and largest sprockets only and a spacer between the two spline contact points. The torsion across the cassette would cause the loose spacer to twist and move slightly against the two spline-grab-ends and make creaking noise.
Otherwise it’s a beautiful piece of kit.