I have Llumar Air80 on the windshield and the HUD works fine. I forget it's even on there because it has no discernable tint to it. The only concern I have with it is if you happen to use your vehicle somewhere that requires a window decal there might be an issue with removing/replacing the sticker without damaging the film. In my case, I have an annual pass to the local lake on my other car and when it's time for a new one they scrape off the old one with a razor blade. I've asked if they could place a pass somewhere other than the inside of the front glass and was told that's the only option. As such, the CX-5 doesn't get to go to the lake.