I did mine a few weeks ago as well. Overall, its pretty easy. Just make sure you have a nice socket set with several extension pieces and the correct Torx bits.

I only had/have 1 issue which I'm really hoping someone could help me out with. I installed everything pretty easily. I left those 4 nuts loose that you tighten from inside the car, put the bumper back on, jacked the bumper up, and tightened up those screws. I still have like a 1/4" gap between the bumper and rear molding. It starts off at the right gap next to the wheel wells, but by the time it gets to the back, about 1/4" too low. I remounted the bumper and the assembly several annoying times, and still the same thing. I'm thinking about taking a hammer to the metal bumper cross brace thing and altering it such that it will mount a little higher.

Any ideas welcome!!
Thanks!
-Ray