The major challenge and the reason that has led to my devaluation is the application of the film. Should be in order to achieve an optimum operability this happen without the inclusion of dust particles. That's according mM but virtually impossible. After reading in forums and consultation of videos I've tried attaching the foil in the bathroom after a shower to eliminate dust floating around as well as possible. To get the display free of dust is not the problem, but unfortunately the plastic film itself draws dust magically. So if you're not have access to a clean room or an antistatic device dust-free mount very difficult.
I have not done in two supplied foils. Dust can not be removed, that is, the film travels after the first unsuccessful attempt in the trash. Very ugly.
My advice: hands off them and nerves and protecting the environment. I would not buy this product again.
