I was in the same boat, wanting to use root only for TBU, Tasker, and the occasional wifi tether.
Don't be in a rush, the phone works pretty good in stock form. When you're ready, read the forums, follow directions, and you'll be fine. There are a couple threads devoted to the topic, I used Hashcode's TWRP method for unlocked bootloaders without problem (after unlocking which was a little bit of a PITA).
I'm no stranger to rooting and flashing roms. I'll admit to being intimidated a little by the Moto X forum posts since it seems that our phone is a little trickier than what I'm familiar with.
FWIW, battery life on this phone is awesome compared to my Gnex and it seemed to get even better when unlocked and rooted. Also, Xposed is awesome.
Moto X DE
Galaxy Nexus CDMA