Used Night Shades on a few vehicles now and thought I would share some of the good and bad.
Easy to apply...spray on, let dry, that simple. You can remove the lense or just mask it off, however I reccomend remove the lense.
Durable...the first car I used the product on is every much as it was the day we did it.
The bad...don't try it on your headlamps! While it looks extremely cool the product is not intended for this. On tail lamps the light is allowed to shine through and brake lights remain red, turn signals remain amber. Headlamps will shine through although the projection of the beam is very reduced.
Easy to remove...just used some citrus based remover and a dish washing pad to remove the tint in less than 15 minutes.