Solar Tint does excellent work, but I don't like the color of the Huper Optik and they don't sell it at anything less than something in the 30% range. If that's what you're looking for, make sure you go on their website and print out the coupon to save some cash.
I went with 3M ColorStable. Got it at Senor Stereo on Bird Rd., I have had several cars tinted there and so have many of my friends, and they do good work as well. All computer-cut. Also less than $200, lol.
2008 E92 M3 MT6 AW/FR/Carbon | AA | VRS | Forgestar
"I like paying taxes. With them I buy civilization." - Oliver Wendell Holmes