Me too Patrick! We had this done shortly after our 4Runner purchase. It really stunk badly and even now after a few weeks since it was done the product is still off-gassing a bit. Next on the list of vehicle mods will be Llumar paint protection. This will be a bit costly but from what we were told it will last 10+ years if not a lot longer.
We did get a couple minor 2mm-ish rock chips on the hood bringing the 4R back from CO. Wish it had been the bumper, but I could also wish work trucks would wash off their equipment before hitting the highway as well. Anyway, that front end is such a sail it could catch anything. We're going to look at some sort of film as well, but right now trying to be mindful on what budget has already been spent. I did the 1000mi break in oil change yesterday, an area dealer was selling (TYO) quarts at $5.90ea plus gave me 10% off additionally. I may need to stock up more than the two changes worth I picked up. I'd rather do my own 5k changes than have a dealer strip out the skid plate bolts during one of their "freebies". Speaking of skid plates and Line-X...
FWIW, I have the off road premium trim and I pulled the front two skid plates prior to Line-X doing the spray. Took them in with the vehicle and and they did the three pieces with rust proofing and were going to dust on some ValuGard just for a color match. I didn't care about the color match, just not added material for attaching and two of the three have to be taken off with each oil change anyway. They were super wet when I went to pick up, I was not pleased. (They are keeping them a bit longer ;)
(Sigh) Like anything nowadays, if you don't do it yourself...
Anyway, its my first 4Runner and I really like the truck. Makes paying for a really over-priced, outdated vehicle more enjoyable. :)