I dont know what tint was used on my car, and dont really care as long as the job was done right and the end results was it looks good.
I asked my dealer to do a legal tint, which in IL is no more than 35% on all glass except the windshield. One thing that I know is always pain is the rear window since its a compound curve. There are multiple ways to do one, either in strips(not very good looking), dry shrink method where they use a powder as a lubricant and heat the film to shrink it to the window, or the wet method where they use a liquid as the lubricant to shrink it. either of the two shrink methods is good, so if the installer uses one of those, then they will do the job right.
As far as the actual film, there are many different varieties. Ceramic, Metallic, etc. as mentioned above, stay away from metallic as they interfere with RF. What you want is one that has a high UVa & B rating as blocking the highest amount of UV. Most good quality films have this, even those you get from Autozone and the like.
For mine it cost $299.95, and from what I remember from pricing the 2010, its about the same, and that was from a few different installers.
Usually an installer would have their own shop that also does stereo and other custom installations, and you can ask for references from their customers. Some dealerships also have a line on a good installer since there are times they have it done to cars they sell as an after market, and they most likely would not deal with a poor installer since they would be the ones getting the complaints.