I placed this kit on my 2009 about 3 years ago. I could not get the film to lay properly on the headlights so I left them off.
Humidity and warm temperatures are your friend. More humidity and less static cling for dust particles. Wait until summer to place the film. I actually contacted the manufacturer and they do not recommend trying to place the film with a relative humidity below 50%, the higher the better. If you clean your paint, say with Plexus and the humidity is low, airborne dust will be attracted to the paint and remain lodge under your film. When everything is wet, it won't look too bad but as things dry out you will see tiny voids( bubbles). I think this film works great. Mine is scratched after 3 years so I plan on replacing it this summer. I'll use the full 3M kit. Good luck.