With all of the construction they're doing in my area they can't hurt. I like the blue tint anyway, and they're only about $60 right?
It seems like they just snap on...I must have them!!
They don't just snap on, you gotta cut the material to fit (unless you buy the precut ones) and heatgun / squegee it kinda like window tint. It's not hard at all to do though.
Oh, ok...I think the ones I saw on a particular website (not sure but I can get the link) are precut for the P5/MSP.