I don't want it. I find most of the improvements have more to do with starting with a fresh device and not L. My Note 4 works great AS IS. More times than not, updates screw a device up and then only the placebo susceptible "see" an improvement.
The Note 4 has good signal reception, great performance and battery life NOW, so why rock the boat? Not to mention lose about 20% of storage space and break some apps.
If there is any way to stop the update I will.