If you're using anything else you'll definitely feel the shift in quality if you switch to these. Not surprising considering it's SRAM, but this is buttery smooth and changed the way I ride for the better.
The SRAM 12spd Eagle is by far the smoothest shifting Mechanical group on the market. The XO1 Cassette offers up a wide range for us 1X spinners to get up the hill and blaze it back down. I have found that the SRAM XD driver style cassette is also much quieter than the Shimano cassette's during shifting. Step up the plate and hook it up with that 50T goodness.
The Sram Eagle 12 speed drivetrain is mind-blowing and its a great upgrade over sram 11speed drive train. The 50 tooth gear is a real leg saver and allows you to run a bigger chain ring up front. I simply love this cassette!
Eagle 12speed is not what I would call a game changer, but more of an evolution from the original 11speed 1x system from SRAM. The broader gear range that includes the 50t ring in the rear allows me to run a larger ring up front and still have a big bailout gear. The X01 Eagle cassette is the same as the XX1 Eagle version, but does not include a Ti-Nitride coating.