[Q] Should I root my note 4? topic

I know it's probably been asked a thousand times, and it's probably a matter of opinion, but I want some input before rooting my note 4. I have rooted every android device I have ever owned, in most cases before they even got warm, but for some reason I'm hesitant With this one, I love it as it is, and I mostly like touchwiz but I put up with its limitations because I like the few perks that the stock launcher provides over an alternative launcher, I really only want to root just for Xposed mods and various root applications, I can't see myself flashing a custom rom anytime soon, unless someone works out how to implement all of the Samsung hardware features. My main concern at the moment I suppose is warranty and OTA update to Lollipop (if that ever happens), I know you can just get the stock rom/image when it's available but I would prefer OTA, at least for the first upgrade to lollipop. can you root but still keep the stock recovery? Can you root without tripping knox? Is there some sort of fuse like there was in the S4 (and I presume the S5,never had one), is it hard to un root?, any other downsides to rooting the note 4?