I had Clear years ago, but it is completely useless at LAX and most of my flights are abroad from there. I decided to take advantage of a free two month trial offer in light of the shutdown, with a couple flight this month. I was able to pass about 10 people in the Pre line at T4 on a Sunday afternoon, which is better than it sounds considering how slow the scanners at T4 are, but still not worth $200/year.