Ceramic film is easy to live with. Leave the windows up until your installer confirms the film has fully dried, then clean with a soft cloth and a mild, ammonia-free cleaner, and keep abrasive pads and scrapers away from the filmed surface. Treated that way, the film holds its clarity and appearance. Separately, it is worth knowing the rules that apply to tinted glass on the road, which you can read about on our window tint laws page. Film selection and legal compliance are separate questions, and your installer can help you line them up.
There is more detail on our care page: window film care.