Once you switch to Mac OS sierra you are going to end up wanting the 200 gb plan. I wonder if they will lower the prices for Mac OS sierra!
As soon as you install it, it just assumes you want to put your Documents and Desktop folders in iCloud, once that is done, it will start storing all your other seldom used files on iCloud
I was using around 48 to 54 on a 150 gig plan. When I installed Mac OS sierra, I now have 130 gb left
I turned off the optimize feature. Or it would of used more, its just storing documents and desktop
I would of allowed it to fill up my iCloud, but I have AT&T uverse and am only allowed 600 gb a month