I have the "clear bra" on my truck. The material is made by 3M so it's probably the same as what you're talking about, but I didn't install it myself.
I watched some of the installation, and due to the curves on the hood and front fenders, he struggled a lot smoothing out the kinks. But when done, it looks nice and works very well. My truck is black so it is very hard to see, other than the line where the edge is.
I also had him put a strip down the rocker panels and behind the rear wheel. After 30k miles, this has saved me from a few chips down there, but for some reason the edges are beginning to peel back just a little, so dirt sits in there and makes a brown line (my rockers are silver). The installer had a warrantee on te job so if I can find him again, he should fix it for me.
I can recommend the product, but I don't know if I'd want to install it myself.
Hope this helps,
JimD