Never actually removed the rear myself, however, the front I've done.... Literally a thousand times, and it couldn't be simpler. Remove the grill (the black plastic tabs under the hood), as well as the two side tabs not on the grill itself.
Turn wheels so they are facing the far right/left direction. Pull out the clips in the splashguard, then pull it out and away so you can work (does not need to be completely taken off). There will be 2 bolts (one right by the splashguard you've now pulled back, and one in the same row, a little further back. Unbolt those (on both sides) and now just pull the bumper back towards the front of the car and down.
Sounds complicated, it really isn't.