100% worth it. I think it is only domestic though. You fill out initial info online and then schedule an appt to go in. Then they say you will hear back in the next 3 weeks or something but I got mine within 3 days. You can also just print out the info and walk-in but may have to wait (office i went to was dead...I was the only one there). They basically just fingerprint you, take a picture and you verify all of the information they have and you are out of there. Earlier you join the bigger the benefit (as I am sure more will be enrolling after watching others fly thru security in the pre line).
https://universalenroll.dhs.gov/
