I have these hubs on my MT30 wheelset from ninevelo.
I've only ridden them for about 150km, but they feel really well made. I initially had a problem with the freehub (Microspline), where the cassette went out of line when torqued down, as seen in video below. Somehow the cassette could sit longer down on the spline, on one side, never seen this before, probably a machining issue.
I have these with 54 tooth rachet.
Ninevelo sent me a new freehub in 4 days, and that fixed the problem.
Let me know if you want any more info on these hubs. BTW they are S&S bearings
https://www.youtube.com/shorts/xM_4PdRfV14