Note 4 910f Rom/Root

I'm going to root my note 4 N910f with a custom rom once I've rooted.
The rom I've decided is simple rom the first question is will that be fine and what will be the disadvantages to that rom?
I would also like to know if I flash that custom rom onto my note 4 will I be able to use xposed for it? Unsure about all this deodexed stuff ;)

Thank you in advance for any help.