[zcaveman]

I installed the window film several years ago. I am extremely happy with it. It reduces the glare and makes the heat from the windows less than it was without it. I am not an engineer and do not have calibrated equipment. It is just a feel for the before and after.

Mine was installed by IES (International Energy Savers). I installed it for the energy savings and not the shatterproof aspect but that is a side benefit.

My cost was $380. I have an Amarillo - 6 regular windows, one kitchen window, one storm door and 2 sliders.

I got the darker tint. It has a mirror look on the outside looking in. At night, if you have the lights on, people can see you.

If there is any problem it is that when the clouds come in, it looks nastier outside than it really is.