Last month, I replaced my stolen 1x11" Sram XX1 with Nexus 8 hub.

That Sram system was great, but the Shimano setup kicks ass.
It has enough range for all mountain riding and can take brutal punishment.

No mud build up and nothing hangs down from your bike. I used to have problem with vegetation getting stuck in cassette and rear derailleur. Now, it's perfect.

Now, I experiment with two chainring crankset and the nexus is taking it pretty well. I was event third on race this weekend with this setup.

Any other riders here interested in this?
If yes, I'll write complete review of this setup