I recently was given an offer to try Clear for three months for free, and I also have TSA/Global Entry. I think I will still pick up the option to pay extra for Clear when the free trial period ends, as you got straight to the front of the security line. I have found that so many people have tsa pre-check now as to make it almost pointless, on occasion I have found the line to be almost the same as without, and in one case even longer. My main reason is that the airports I tend to fly from are usually the really busy ones, NYC/Chicago and for me it's worth it