Thanks for the feedback. Not sure about the quality of the Telsa, but I know that PS makes quality stuff. I have a Spigen SGP Neo Hybrid EX Slim metal on order. I'll see how that bumper is before ordering the PS Flat Bumper. $39.95 is a bit pricey for this style bumper though.
The Tesla Bumper does appear to be a knockoff but the big difference besides price is the bottom slots. On the Tesla, it's completely open on the bottom so adapters and docks should not be a problem.