I have been lurking on this website for a while and finally joined after this post peaked my interest. I have been specializing in paint protection film (PPF) installations for over seven years.
I have worked with just about every available film and pre-cut patterns and here are three important factors when choosing paint protection film.
1. Brand of film: clearcoated film vs. topcoated film vs. unprotected urethane film. 3M Scotchgard PPF, Ventureshield, Clearshield, Baekart, Haartz, Avery Dennison, etc. Bottom line. 3M is the only film with a real clearcoat layer that is almost identical to your cars paint clearcoat system. It doesn't require any special care. Other films require special plastic cleaners, sealants, etc in order to clean and protect the porous urethane. Non clearcoated films tend to stain, discolor, and lose their gloss over time. Non clearcoated film cannot be polished, buffed, of wet sanded like one can with 3M Scotchgard. 3M's film is more expensive than others and more time consuming and more difficult to install. Warranty: Some film companies offer ridiculous lifetime warranties that are simply creative marketing. 3M is the only company whose warranty covers both the film and labor to reinstall new film in the event of a warranty claim. No other companies cover the cost of labor in their warranties.
2. Pre-Cut vs. handcut. Most professional installation companies use pre-cut patterns that are computer cut specific to each vehicle. Not all patterns are equal. Some offer more coverage than others, specifically on the hood and fender sections. Some use multiple pieces of film on bumper sections, which create additional seems when it is not necessary. Some installers use bulk rolls of film and trim them to fit the contours of vehicles which can work, but often creates consistency problems and poses the risk of cutting into the paint.
3. Installer. Use a professional installation company that has a lot of experience and excellent references. You can have the best film and pre-cut patterns, but it is worthless if it isn't installed properly and looks good. There are a lot of so called PPF installers that add PPF to their existing business or dabble in it. One must install PPF on a regular basis to maintain proficiency and skill.
Autobahnd "Roadblock" is a franchise company that specializes in PPF. They have their own patterns and use different brands of film based on their location.
My 2cents: Use 3M film, quality pre-cut patterns installed by a reputable installer OR make sure that your dealership/PPF will warranty the cost of labor and film, because you may need it down the road.