A breeze of an install! Make sure you have the "Microspline" driver on your wheel, as well. The old Shimano HG won't work on this 12 speed, M8100 stuff. Cool design on how they got the 10 tooth cog attached too!
I like the lower end gearing of the Shimano cassette compared to the SRAM Eagle stuff. It is a bit more consistent in the jumps between cogs instead of ramping up to the 50/51 tooth.
The last cogs on Eagle gearing go: 28,32,36,42,50
And on XT they are: 28, 33, 39, 45, 51
With Eagle your jumps are: 4, 4, 6, 8
And on Shimano you get: 5, 6, 6, 6
I feel this most when I am starting on a climb and am slowly gearing down. With Eagle, you can hit a bigger jump and spin out for second until your bike slows down. With XT I don't feel that. Also, when you are accelerating or heading down with XT, you get a little more consistent jumps as you gear up and gain speed. No feeling like you all of a sudden are pedaling in the mud.