See my topic here
http://f10.m5post.com/forums/showthread.php?t=683434. Those are darkest Lummar, no issues with electronic frequency pass-through.
Pros:
Looks good, especially on Alpine White
Minimal interior heat under the sun (paint and tint combination helps this)
Tints didn't let my rear window shatter and caused a considerable delay to the failed burglary attempt
Cons:
Driving and parking at night with windows up is not easy, have to rely on cameras