When I bought my 07 GT, I purchased the above along with it from the dealer. I'm just curious if anyone else had this done and what their experience has been. Supposedly, you don't have to wax the car for 5 years if get this. Its rainy season here and the water beads up nicely for now. Also, the interior is treated to repel wet stuff so you can wipe it up in time. Done deal but should I have waxed it myself?