Here in Miami tinted windows are a must. Cuts down on heat in the car, damage to the interior due to solar radiation, and sunburn on long trips. If your car has a lot of the new high-tech electronic devices you need to be aware of which types to stay away from due to signal interference. My suggestion is to ask around and find a reputable installer. They will be able to recommend the best product for your car. And, I went with the 4 inch strip on the top of my new Challenger's windshield. Cuts down on glare and due to the rake of the windshield is not very noticeable under normal driving conditions. I would also have them install the tints as they usually provide a warranty with their work and the better the installation the better it will look and last. Also, a good job should cost you around $150.
Good luck,
MIKE