Yes I had the 3M chipgaurd done on my bumper only. I'm quite happy with it. There is only 2 relief cuts that are visible at all. Otherwise all cuts/edges land on the seam in the body panels or on a break line so you can't see them. Very minor imperfections - no noticable stretch marks. I don't have pictures but they would be useless anyway b/c you can't tell it's there unless you see an edge, or you touch it. It's otherwise 98% invisible.
PS - Look at the photos from the Brampton GM test drive gathering. Mine is the IOM on the far left.