I've used: Ghost Armor, Wrapsol, Invisible Shield and BodyGuardz and I can say with complete honesty they are all nearly the same.
Invisible Shield tended to be the most 'orange peel' like, but other than that they are all the same product for the most part, just different cuts.
I'll put it this way, I would order from any of the companies again, they've all provided great support/warranty service, and I was satisfied with all of them.
With that said, every one of the products tends to come off after awhile (usually 6-9 months) but I would always just pay the 2-3$ and get a replacement.