I have noticed what appears to be a different texture on the lower sections of the door - to me it isn't so much visible as it is tactile. I could feel it as I was waxing (and removing wax). This doesn't bother me at all.
I do notice the orange peel, too. This does bother me a little. I first noticed it when i took a bunch of pictures of my car. As i was reviewing them on the computer, it really jumped out at me. I am happy to overlook it though, since I love the car. My car is in the body shop right now, so i am curious what their paint job will look like (I hit a deer on Friday).
This is the picture of the orange peel if anyone is curious:
(Large file 1600x1200)
www.spiffspace.com/pictures/orangepeel.jpg