I rode them last year 5000 km. Shifting was not so good as Shimano cassette but with R9000 pulleys or something like that it is okay except for the 11t and 12t sprinting.
New chain this year skipped and teeth were worn on the most driven sprockets. Chain not worn Shimano 900 chain under 0.075 Park tool.
No creacking or strange noise except for loud Red power dome cassette like noise. Went back to Shimano R9100 cassette.